US1450116A - Valve and valve-seat facing tool - Google Patents

Description

Mar. 27, 1923.

w. c. RUHLANDT VALVE AND VALVE SEAT FACING TOOL Filed Feb. 16, 1921 WIN/E8858. v IIVVE/VTOR W W WALTHER C .RU'HLANDT.

I ATTORNEY Patented Mar. 27, 1923.

UNITED STATES WALTHER C. RUHLANDT, OF JACKSON, MICHIGAN.

VALVE AND VALVE-SEAT FACING TOOL.

Application filed February 16, 1921. Serial No. 445,428.

To all whom it may concern.

Be it known thatI, WALTHER C. HUI-1L- ANDT, a citizen of the United States, residing at Jackson, in the county of Jackson and State of Michigan, have invented certain new and useful Improvements in Valves and Valve-Seat Facing Tools, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to improvements in valve and valve seat facing tools.

An import-ant object of the invention is to provide a device of this character whereby the valve may be surfaced while in position in its guide, and whereby in one continuous operation the valve may be surfaced and the seat likewise surfaced, thus assuring proper alinement of the valve surface with the stem of the valve and with the seat.

A further object of the invention is to provide in combination with a cutter member adapted to surface both the valve and the seat, means whereby the valve may be rotated in the cutter member independently of the cutter member, and means whereby the valve and cutter member may be simultaneously rotated.

A further object of the invention isto provide a novel-construction of cutting member comprising a frusto-conical shell having formed in the side walls thereof, slots, the material of the slots being disposed at an angle to the shell to form facing members, alternate facing members being directed inwardly and outwardly so that the shell is provided upon its outer face with facing members for surfacing a valve seat, and upon its inner face for surfacing the valve.

Other objects and advantages of the in vention will become apparent throughout the course of the following description.

In the accompanying drawings, wherein for the purpose of illustration are shown preferred embodiments of my invention, and wherein like reference characters designate like parts throughout,

I Figure 1 is a side elevation partly in sectionshowing my device applied for surfacing the valve, the operating member being disposed to rotate the valve independently of the shell,

' Figure 2' is a side elevation of the shell detached, v

Figure 3 is a bottom plan view of the shell,

Figure 4 is a bottom plan View of a slightly modified form of shell,

Figure 5 is an edge elevation of the operating member, and

Figure 6 is a View similar to that shown in Figure 1, the operating member being arranged to simultaneously rotate the valve and shell.

Referring now more particularly to the drawings, the numeral 10 indicates a frustoconical shell, the shell having formed in the edge of the large end thereof, diametrically opposed notches 10. The shell has formed therein, slots 11, extending radially when viewed in plan, and the metal of the shell normally forming these notches is struck inwardly and outwardly to form inner facing or cutting members 13 and outer facing or cutting members 12. In the forms shown in Figures 2 and 3 the facing members are formed in each side of the slot, one being directed inwardly and the other outwardly, and in the form shown in Figure 4; the metal of the slots is alternately struck inwardly and outwardly to form the facing members. These facing members have their edges parallel.

In the employment of the shell the valve 14 is inserted in the shell with the stem 15 of the valve projecting through the open smaller end of the shell and the shell is then inverted and placed upon the valve seat 16, the stem of the valve entering its guide 15.

An operating member for rotating the valve and the valve and shell is provided. comprising a body portion 17 squared or otherwise adapted at its outer end for-engagement with the driving element whereby it may be rotated. The lower end of the body portion 17 is furcated to form spaced arms 19 between which is rotatably mounted a substantially rectangular plate 20, having opposed short sides 20 and long sides 20 As is well known to those familiar with the art, valves in the construction thereof are provided their heads with means whereby they may be .1'otatecl,.this means sometimes taking the form of a centrally disposed slot and at other times taking the form of a pair of spaced recesses adapted for the reception of lugs upon the driving member. In order that the driver oroperating member may be adapted for engagement with all of these types of valves, I provide upon one of the short sides 2O of the t ed to engage in the sockets of socket-headed valves. The short side of the plate is not of sufficient width to span the base or wide end of the shell and accordingly when either the tongue 21 or lugs 22 of the short sides 20 are in engagement with a valve, theshell is not engaged and the valve may be rotated independentlyof theshell.

In orderthat the valve a'ndshell may be simultaneously rotated withthe valve in position, the long, sides-ofthe plate 20 are provided one with a tongue 21 and the other with lugs 22, "l/Vhena long sideof the plate 20 is presented for engagement with the valve, the endsofthe plate extend through the notches 10 -of the shelland accordingly the valve and shell are simultaneously rotated. It will be seen that by placing the valve in the shell and entering the valve stem in its guide so that the exterior of the shell is engaging the valve seat and the operatingcface of the valve is Engag ng the abrading members the jinteriorcof the shell, theoperating member .17 may' first be employed to rotate the valve within the shell so as to surface the valve and the plate 20 may be rotated to bring the corresponding long side of the late into engagement with the valve and shell, and the shell and valve simultaneously rotated to surface the seat. This continuity of operation'is particularly advantageous in that it insures "proper alinement of the valve with its seat and in that the shell being maintainedin alinement byithe valve and the valve'having its stem in engagement with its guide, the'seat formed will'be in proper alinement with the valve guide.

Fromthe foregoing it is believed to be obvious that I have provided a valve seat and valve surfacing device which is particularly welladapted for use by reason of the simplicity of its structure, the facility with which it may be operated and the cheapness with which it may be manufactured.

"It will furthermore be obvious that the structure as hereinabove set forth is capable of some-change in modification without materially departing fromthe spirit of my invention, and'I accordingly do not limit myself to such specific structure except as her inafte c imsd- "What Iclaim is: I

L In a tool for facing valves and valve seats, a shell provided Linteriorly with facing members for facing a valve, and ,exteriorly withjfacing nembersfor facing a valve seat,

said shell having notches formed in the ejolge o'fone endthereo'f,and a driving-meme .eaib slringsr rt ons ada te ng e with facing members for facing a valve seat, a driving member comprising a body portion at one end for engagement with means whereby it may be connected to a source of rotation, a plate pivotally mounted in the lower endof said body portion, and embodying portions adapted to engage a valve disposed within a shell to rotate the same independently of the shell and other portions adapted to simultaneously engage the valve and shell to simultaneously rotate the same. i i

3, In a tool for facingvalves and valve v seats, a frustJo-conical shell having slots formedtherein, each ofsaid slots b'ein'gprovided at an edgethereof with a portion disposed at an angle to the shell and forming a facing member, alternate facing members a 7 being inwardly and outwardly directed.

4C. In a tool for facing valves and valve seats, a 'frusto-conical shell having slots therein directed radially of the shell when the shell is viewed in plan, the'metalof the shell at the longitudinal edges of the slots being bent at an angle thereto and forming facing members the facing member atone side of each of the slots being inwardly 'di rected and the facing member at the other side being outwardly directed.

5. In a tool for facing valves and valve seats, ashell having slots thereimsaid slots being provided atthe edge thereof with a portion disposed at an angle tothe shell and forming a facing member, alternate facing members being inwardly and outwardly directed, the working faces of said. facing members being arranged upon concentric conical surfaces.

6. In .a tool for facing valves' and valve seats, a shell. having slots therein extending substantially longitudinally of the shell,-the metal of the shell at the longitudinal edges of the slots being bent at an angle thereto and forming facing members,'the ffacing member at one side of'each of the slots being inwardly directed, and-the facing member atthe other side being outwardly'directed,

7. In a tool for facing valves and valve seats, a shell providedinteriorly with facing members for facing "the valve and ext-eriorlywith facing members for facing" the valve seat, said shell having'notches formed in an end thereof and a-driving member adapted at one end for engagement w-ith means whereby it may be connected {to a source of rotation, a plate pivotally mounted in the lower end of said body portion and substantially rectangular in form, said plate and with other portions adapted to simulbeing provided upon the ends thereof with taneously engage the shell in the notches portions for engaging valves of different thereof whereby to simultaneously rotate the structures when the same are disposed Withvalve and shell.

in the shell to rotate the same independently In testimony whereof I hereunto afiix my of the shell and upon the sides thereof With signature.

portions for engaging valves of difi'erent structures when disposed within the shell, WALTHER C. RUHLANDT.

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