US1280774A - Valve-facing tool. - Google Patents

Description

F. H. LEWIS. VALVE FACING TOOL.

APPLICATION FILED FEB. l0, l9l7.

WITNESSES:

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41/- 4 TTOR/VEY FREDERICK H. LEWIS, OF MARION, CONNECTICUT.

VALVE-FACING- TOOL.

Specification of Letters Patent.

Patented 0013.8, 1918.

Application filed February 10, 1917. Serial No. 147,818.

To all whom it may concern:

. Be it known that I, FREDERICK H. LEWIS, a citizen of the United States, and a resident of Marion, county of Hartford, and State of Connecticut, have invented a certain new and useful Improvement in Valve-Facing Tools, of which the following is a full, clear, and exact specification.

This invention relates to a class of devices adapted to be used for repairing damaged valves.

My invention has for its object primarily to provide a tool designed to be employed for permitting valves to be quickly and easily faced as well as being trued to perfeet accuracy by being ,re-faeed especially when damaged by wear without requiring the work to be accomplished by expert Workmanshi as is incident to the methods ordinarily in use, and which is .of an adjustable form to allow valves of various sizes and shapes to be repaired by the use of .the tool, This is accomplished mainly by providing a frame in which is mounted an adjustable cutter for truing the head of the valve, and on the frame may be one or more bearings for removably supporting the'valve so that its stem may be rotated to also revolve the head of thevalve in contact with the cutter. 1

:Other objects of the invention are to provide one or more adjustable clamps .to releasably hold the valve stem in the bearings for rotation; to provide an adjustable stop on the frame for retaining the head of the valve in rotatable contact with the cutter; and to provide a separate handle adapted .to be detaehably. applied on the valve stem whereby the valve may be manually rotated when being faced.

A further obj ect of the invention is to .provide a valve facing tool .of a simple, efficient and durable form, and which is susceptible of being made in various sizes and shapes.

A practical embodiment of the invention is represented in the aeeomapnying drawing forming a partof this specification in which similar characters of reference indicate corresponding parts in all the views, the said invention being more fully described hercinafter, and then pointed out in the claims at the end of the description.

In the drawing, 1

Figure 1 is a side-elevation of one form the base-plate is a standard, or bar 12 having an angularly bent arm 13 overhanging the base-plate, all of which may be made of any suitable material and in any desired shape and size.

Through the overhanging angular arm 13 0f the standard 12 is a vertically disposed opening 13 in which is a enter, as 14, adaptd to be adjusted upwardly and downwardly relative to the base-plate 11 of the frame 10. The cutter has a substantially round rodshaped body 15 of a length so that its lower end extends some distance below the arm 1.3 of the standard 12, while its upper end extends some distance above this arm of the standard. Projecting downwardly from the lower end of the body 15 of the cutter 14L is a blade 16 the lower free edge of which is cutaway on (an incline, as at 1,7, which conforms to the beveled edge, as 18, ofthe head 19 of a valve 20 having a stem 21, the valve illustrated being ofa well-known type. Th blade 16 may be provided by cutting-out or notohing approximately one-half of the lower end part of the body 15 lengthwise and the inclined edge of the blade is bevelsharpened to a knife edge for trimming the beveled peripheral edge of .the valve head 19 when being faced, as will be hereinafter more fully explained. A portion Of the eircular body lengthwise thereof is cutaway, as at 22, to provide a flat surface for being engaged by a set screw 23, which is threaded in an opening 24 in the arm 13 of the standard 12 for ,releasably locking the cutter 1% against accidental movement when adjusted in the .arm of the standard 12. The purpose of placing the cutter vertically is that in such a position the cutter will always engage :the .valve face in the center regardlessof the;

size of, the" head of the valve or its stem, whereas a cutter placed horizontally would vary its engagements with the valve according to the various sizes of its stems and heads.- I have found in practice that my vertically disposed cutter attacking as'it does separate of the frame and connected thereto so as to be adjusted toward and fromeach other as well as being adjustable in spaced relation to and from the standard 12 of the frame of the tool. The adjustable posts '25 and 26 are of similar formations, and each post has a substantially rectangular body portion 27 with a substantially rectangular flange 28 projectinglaterally from its lower end. Extending upwardly from the top of one end of the body portion of each of the posts 25 and 26 is a vertically disposed arm 29 of approximately one-half the size or less, as viewed transversely, of the perimeter of the rectangular body of the post, and on the upper end of the arm 29 of each post is a head 30 overhanging in spaced relation ill: second end of the body portion 27. By spacing the heads 30 from thebody portions of the posts a recess, as 31, is provided in one of the edges of each post. In the center of the second end of the top of the body por tion 27 of each post is a bearing 32, and these bearings are preferably in the forms of substantially v-shaped notches" disposed crosswise of the body portion, while vertically through the head 30 of each post is a threaded opening 33 the center of which is 011 alinement with the center of the bearing of its respective post. The posts 25 and 26 are arranged on the base-plate 11 of the frame of the tool so that the apices of the V-shaped bearings 32 are on the same relative plane longitudinally as well as being in opposed relation to the cutting edge 17 of the blade 16 of the cutter 14. The rectangu- 'lar flanges 28 of the posts 25 and 26 will thereby be disposed transversely of the base plate of the frame of the tool, and serving to releasably fasten the flanges to the baseplate of the frame to permit the posts to be adjusted toward and from each other as well as toward and from the cutter 14, in the ends of the flange of each of the posts are elongated slots 34 and 35. Through-the slots 34 and 35 of the flange of eachpost are rotatably disposed finger or machine set screws, as 36 and 37, and these screwsof each post arepassed into threaded openings in the base-plate 11 of the frame. By tightening the finger screws or set screws 36 and 37 the posts will be held on the frame against accidental displacement, and by loosening these set screws the post may be suitably adj usted on the base-plate relatively to the cutter 14 and also with respect to each other.

' Toface a valve by the use of the tool, for instance the form of valve, as shown at 20, the valve is arranged so that its stem. 21

will be disposed in the recess 31' of the posts 25 and 26 for being seated in the \I-shaped bearings 32 and'so that the beveled periphery of the head 19 of the valve will be in contact with the inclined cutting edge 17 of .the blade of the cutter 14, as illustrated in Fig. 1. The free end of the stem of the valve will then extend some distance beyond one end of the tool, and to rotate the valve so that the beveled periphery of its head will be properly faced'by being trimmedby the cutter 14, I may employ any desired form of implement,though I prefer to use a separate crank handle, as 38. The crank handle '38 may be of a well-known form, as shown, having an apertured sleeve, as 39, which is removablyguided on the free end part of the stem of the valve, and threaded in an opening in this sleeve is a set screw 40 for being rotatably guided into engagement with the stem of the valve when the handle is applied thereon. The handle 38 will then be tightly held on the stem of the valve for manual rotation to revolve the head of the valve in contact with the cutter for being faced; r i

Serving to'releasably hold the valve stem in the bearings 32 for rotation, adjustable clamps 41 and 42 are provided. The clamps 41 and 42 are similarly formed, and each clamp has a threaded bolt 43. bolts of each clamp is screwed through the threaded opening 33 of the head 30 of each of the posts 25 and 26, and these bolts are of lengths so that their lower ends extend below the heads of the posts into'the recesses '31 thereof as well as extending some distances above the heads while on the upper 'ends of each bolt is a head, as 44, to allow the bolts to be easily screwed upwardly and downwardly in the heads of the posts for varying the sp'acingbetween their lower One of the.

ends with relation to the bearings 32 of the posts. On the lowerend ofthe bolt 43 of each of the clamps is a rotatably movable block 45, anchthese blocks are preferably substantially rectangular in shapes. Each of the blocks 45 has a recess 46 in its'top surface, and in these recesses are disposed the lower. ends of the bolts 43, the recesses being of somewhatgreater diameters than the bolts to allow the blocks to be revolubly movable thereon. Through a hole in one of the side walls held one end of a threade lar recesses of the bolts when the blocks are revolubly moved. When the valve is arranged in the tool so that its stem is disposed in the V-shaped bearings 32 of the adjustable posts 25 and 26, as above explained, the clamps 41 and 42 are operated to hold the stem rotatably in the bearings by turning the heads 44 to revolve the bolts 43 for moving the blocks 45 into engagement with the top of the stem of the valve, and the crank handle 38 is revolved to rotate the valve for facing the valve.

In order to hold the head of the valve in rotatable contact with the cutter 14, an adjustable stop 47 is provided. The adjustable stop 47 has a concaved circular head, or plate 48 adapted to be, moved into contact with the head of the valve, and in an opening centrally of this )late is rotatably d bolt, as 49. In the standard 12 of the frame 10 of the tool is a threaded opening 50 the center of which is on longitudinal alinement with the center of the head of the valve, and in this opening is screwed the bolt 49 so that the concaved face of its head 48 will be-in opposed relation to the head of the valve, while on the second end of the bolt is a rigid head 51 to allow the bolt to be readily rotated. When this bolt is adjustably rotated accordingly the head 48 will be moved into contact with the head of the valve for releasably retaining the valve head in engagement with the cutter 14 when being faced, and the concaved head of the bolt being revoluble thereon it will also revolve with the rotation of the valve when turned by the crank handle 38. Thus by the use of this tool valves when damaged by wear, or otherwise may be easily and properly refaced without requiring skilled workmanship, and as many forms of valves are pro- .commodation in the tool.

vided with shouldered stems, the adjustable posts 25 and 26 will permit of their ac- Also by providing the adjustable cutter 14 valve heads of various diameters may be readily faced by the use of the too]. i y

In the foregoing description, I have embodied the preferred form of my invention, but I do not wish to be understood as limiting myself thereto, as I am aware that modifications may be made therein without departing from the principle, or sacrificing any of .the advantages of this invention therefore I reserve to myself the right to make such changes as fairly fall within the scope thereof. 1

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1, A valve facing tool, comprising a baseplate having a cutter adjustably supported above the base-plate, posts on the base-plate adjustable toward and from each other, hearings in the posts whereby the stem of a valve may be removably and revolubly held so that the head of the valve will be in movable contact with the cutter, means on each post to releasably retain the stem of the valve in the bearings, and a separate handle adapted to be detachably fastened on the stem of the valve so that the valve may be manually rotated. V

2. A valve facing tool, comprising a substantially rectangular base-plate having an upwardly projecting standard, a cutter adustablv supported on the standard above the base-plate, posts on the base-plate in spaced relation to the standard, and said posts being adjustable toward and from each other as well as being adjustable toward and from said standard, hearings in the posts whereby the stem of a valve may be removably and revolubly held so that the head of the valve will be in movable contact with said cutter, and means on each'post to releasably retain the stem of the valve in the bearings.

3. A valve facing tool, comprising a substantially rectangular base-plate having an upwardly projecting standard, a cutter adjust-ably supported on the standard above the base-plate, posts on the base-plate in spaced relation to the standard, and said posts being adjustable toward and from each other as well as being adjustable toward and from said standard, bearings in the posts whereby the stem of a valve may be remov ably and revolubly held so that the head of the valve will be in movable cont-act with said cutter, means on each post to releasably retain the stem of the valve in the bearings, and a separate handle adapted to be detachably fastened on the stem of the valve so that the valve may be manually rotated.

4. A valve facing tool, comprising a sub stantially rectangular base-plate having on one of its ends an upwardly projecting standard with an aper tured arm overhanging the base-plate, a blade adjustable in the aperture of the arm, having a beveled cutting edge in opposed relation to the standard, means for releasably locking the blade to the arm of the standard when adjusted, posts on the base-plate in spaced relation to the standard, and said posts being adjustable toward and from each other as well as being adjustable toward and from said standard, hearings in' the posts whereby the stem of a valve may be removably and revolubly held so that the head of the valve will be in movable contact with the cutting edge of said blade, and means on each post to releasably retain the stem of the valve in the bearings.

A valve facing tool, comprising a substantially rectangular base-plate having on one of its ends an upwardly projecting valve so that the valve-may be manually rostandard with an apertured arm overhanging the base-plate, a blade adjustable in the aperture of the arm, having a' beveled cutting edge in opposed relation to the standard, means for releasably locking the blade to the arm of the standard when adjusted, posts on the base-plate in spaced relation to the standard, and said posts being adjustable toward and from eachother as well as being adjustable toward and from said standard, bearings in the posts whereby the stem of a valve may be removably and revolubly held so that the head of the valve will be in movable contact with the cutting edge of said blade, means 011 each post. to releasably retain the stem of the valve in the bearings, anda separate handle adapted to be detachably fastened on the stem of the tated. j V

6. A valve facing tool, comprising a baseplate having an upwardly projecting standard with an apertured arm overhanging the base-plate, a' blade adjustable in the aperture of the arm, having a beveled cutting edge in opposed relation to the standard, means for releasably locking the blade to the arm of the standard when adjusted, posts on the base-plate in spaced relation tothe standard, and said posts being adjustable toward and from each other aslwell as being adjustable toward and from said standard, bearings in the posts whereby the stem of a valve may be removably and revolubly held so that the head of the valve will be in lIlOV- able contact with the cutting edge of said blade, means on each post to releasably retain the stem of the valve in the bearings, and means on the standard of the base, adjustable for revolubly holding the head of the valve in revoluble engagement with the cutting blade. 7

7. A valve facing tool, comprising a baseplate having an upwardly projecting stand ard with an apertured arm overhanging the base-plate, a blade adjustable in the aperture of the arm, having a beveled cutting edge in opposed relation tothe standard, means for releasably locking the blade to the arm of the standard when adjusted, posts on the base-plate in spaced relation to the standard, and said posts being adjustable toward and from each other as well as being adjustable toward and from said standard, bearings in the posts whereby the stem of a valve may be removably and revolublyheldso that the head of the valve will be inmovable contact with the cuttingedge of said blade, means in each post to releasably. retain the stem valve in the bearings, means on the standard of the base, adjustable for revolubly holding the head of the valve in revoluble. engagement with the cutting blade, and a separate handle adapted to be detachably fastened on the stem of the valve so that the valve may be manually rotated.

'8. A ,valve facing tool, comprising a substantially rectangular base-plate having on one of its ends an upwardly projecting standard with an apertured arm overhang ing the base-plate, a cutter adjustable in the aperture of the arm, posts on thebase-plate 111 spaced relation togthe standard for removably and revolubly supporting a valve, and said, posts being adjustable ton *ardand from each other as well as being adjustable toward and from said standard, means in each post to releasably retain the stem of the valve on the posts, and means on the standard of the base, adjustable for revolubly holding the head of the valve in engagement with the cutting blade.

9. A valve facing tool, comprising a substantially rectangular base-plate having on one of its ends an upwardly projecting standard with an apertured arm overhanging the base-plate, a cutter adjustable in the aperture of the arm, posts on the base-plate in spaced relation to the standard for revolubly supporting a valve, and said posts being adjustable toward and from each other as well as being adjustable towardv andfrom said standard, means in each post to releasably retain the stem of the valve on the posts, means on the standard of the base, adjustable for revolubly holding the head of the valve in revoluble engagement with the cutting blade, and a separate handle adapted to be detachably fastened on the stem of the valve so that the valve may be manually rotated.

10. A valve facing tool, comprising a substantially rectangular base-plate having on one of its ends an upwardly projecting standard with an apertured arm overhanging the base-plate, a beveled cutter adjustable in the aperture of the arm in opposed relation to the standard, means for releasably locking the cutter to the arm of the standard when adjusted, posts on the base plate adjustable toward and from standard whereby the stem of a valve may be removably and revolubly held so that the head of the valve will bein'movable contact with the cutting edge of said cutter. and means on the standard ofthe base, adjust-- able for revolubly holding the head of the valve in revoluble engagement with the cutter.

v 11. Avalve facing tool, comprising a substantially rectangular base-plate having on one of its ends an upwardly projecting standard with an apertured arm overhanging the base-plate, a beveled cutteradjustable in the aperture of the arm, having a beveled euttmg edge 1n opposed relation to the standard, means for releasably locking the cutter to thearni of the standard when said 7 adjusted, posts on the base-plate adjustable toward and from said standard whereby the stem of a valve may be removably and revolubly held so that the head of the valve will be in movable contact with the cutting edge of said cutter, means on the standard of the base, adjustable for revolubly holding the head of the valve in revoluble engagement with the cutter, and a separate handle 10 adapted to be detachably fastened on the stem of the valve so that the valve may be manually rotated.

This specification signed and witnessed this7seventh (7th) day of February, A. D. 191

FREDERICK H. LEWIS.

Witnesses:

MARY E. HALFMANN, CHARLES DE BISSCIIOP.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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