US1699123A - Valve tool - Google Patents

Description

Jan. 15, 1929.

J. F. SET H VALVE TOOL Filed April 14. 1927 2 Sheets-Sheet 1 |||lll|vlmnhIA l .if 4 as d 1,/2 "i, l 7 4 Jan. l5, 1929.

J. F. SETH VALVE 'rooL Filed April 14, 1927 2 Sheets-Sheet 2 Patented Jan. 15, 1929.

i UNITED STATES PATENT-omet.

JOHN F. SETH, OF EELENA, MONIANA.

VALVE TOOL.

Apprmatipnleaeprn 14, 19er. serial up, mme

This invention relates to improvements in valve tools and has as its `general object to provide a tool which may be readily and quickly adapted for nee in tbe grinding ot' the valves of internal combustion engines as Well as for usein compressing tbe springs of suoli valves to permit of removal, of the pine adinet which the epringuasbers reet under normal operating conditions of the engine, .eo that the valves may be removed by the use ot the device. u i

`lt is a Well known fact that in grinding valves it desirable that a `uniform pres i faire be exerted upon tbe valve bead While it isv being` rotatec back and tortli during the grinding or facing;` opera lon and therefore it .ie one of the objects ot the present invention to provide a tool by tbe use of which any deeired degree of pressure may be imposed and "maintained on, an internal combustion engine valve Wlile` tbe tool is being operated to rotate'tlie valve to" effect grinding of tbe saine to rte seat.

Another important object of tbe invention is toV provide atool for this purpose embody ingr s adaptingr it to be anchored to tbe valve stein and valve and thus maintained in proper position with respect to tbe valve dui-inn; the operation of tbe tool to effect grinding of the. valve, tlrus overcoinlng tbe dieadvantafres which attend the use lof valve grinding,r tools of ordinarv construction.

Another object of the invention 1s tol so construct the tool that it may be employed as a means for compressing the spring of' a valve to permit of removal of tbe cross pin from tbe valve stem and thus permit of sub sequent complete removal o" the valve and spring, the construction of tbe tool being such that when actuated to compress tbe sprin ie parte will be automatically locked so that tbe tool may bei, at this time, releaeed while tbe pin ie being removed, thus leaving the nforlonane bands tree in performing tlii'i operation. i

Another object oit the invention ie to so construct the tool that tbe. saine muy be ein ployed in connection with valves ofvarious eizefi an d types Without any alteration in tbe conetruction of the tool.

In tbe accompanying drawings:

l ie a side elevation of the valve tool c embodying the invention, the view illustrate ing tlle'tool applied to a Yalvefor the pur` pose" of grinding or refacing the valve and the parts being` shown in operative position in full lines and" in iimctive position in broken lines;V Fig-` 2 is a View in front elevation of the t001;`\ u o Fig. Bosa horizontal seetionollview taken substantially on the line ofV F ig l loolring in, the direction indicated by" the arropivs; Fig; 4 is a similar' vieivon the line` of Fig. l looking` in the direction indicated b v the arrovvs; p

Figr. oie a view similar to Fig. 1 illustrating tbe tool adapted for use in the cornipres on of a valve spring preparatory to removal ofthe valve andspring. 'c The tool comprises a bod member which is indicated by the nemer l and lwhebie rectangular in close section, being straight throughout the greater i o rtion of ite length and ot'n dimensions suita "le the jpur oees ot; the invention.` At its lower errd the ody l le formed with an ar1n2 which extends forwardly frei the bod)7 and in a general downward (,irection and at itsy l itorlre'dl so as to provide spaced fingere; which are adapted to straddle the valve stein, indicated by the reference character S as shown in Figure l and engage beneath the Washer' W which. is fitted upon the stem and against which the valve spring S `is adaptedto bear, the upper end of the spring bearing beneath' tbe overhanging portion of tbe engine block as usual so as to bold the valve head H toits seat. The reference let ter P indicates the usual pin which is fitted tbroughthe valve stein and which supports the Washer WQ `The lingers 3 are spaced apart a eulicient distance to adapt the forked end ogt t-hearnr 2 to engage the valve stein S and prevent any displacement of tbe arm with respect to the stein after the arm has been arranged in the manner shown in Figure 2 and with the upper Sides of `the fingers engaging the underside of the` washer At its upperend tbebody 1 is prof` vided with an arcuate forwardly extending ,supporting portion or head `4f which occupies the saine plane as the body l and` `the arm 2 and vvbichu 1s located above A the eaid arm- A series 0i openings" e formed in the head 4, the Series. etehiogff-r In the end 0f the head," inwardly elle ff dieten@ lower endf is c openings, and a hand lever 6 is provided and includes :spaced side members 7 which, at the forward end ot the lever, straddle the forward portion of the head l and are pivotally suspended from the head through the medium ot a pin 8 which is fitted through openings in the said ends ot' the portions 7 and interchangeably through the openings 5, the pin being preferably provided at one end with a head 9 and being retained against accidental withdrawal by means ot a cotter pin 10 which is fitted through its other end portion. By reference to ll'igure 1 ot the drawings it will be observed that the side members 7 ot the lever (3 are formed with stems inwardly ot their ends which are pivotally connected with the head ll, these stems being indicated by the numeral 11, and in providing. these stems the side members 'l' ot thelever are so formed as to provide portions 11.2 which entend at apin'oxiniately a right angle upwardly ,trom the remaining portions of the said side members ol. the lever. lt will be observed by reference to Figure 1 that the portions 1Q of the hand lever are suspended substantially vertical and the other portions which are indicated by the numeral 13 extend approximately horizontally and rearwardly and straddle the upper port-ion ot the body 1, being relatively braced at a point rearwardly of and spaced from the said body by a rivet 14;. The spaced members 7 of the lever G are integrally connected at the rear ends ot their portions 13 by an end piece 15 and the ineinbers are relatively ollset as at 16 in an outward direction adjacent to the rivet 11i so that a handle 17 is provided at this end oit the lever. It will now be evident that the lever is suspended from the head 4 tor swinging movement about the pin S as a pivot, and the purpose ot constructing and arranging the lever in the manner described willV new be explained.

rlhe numeral 1S indicates a supporting and bearing arm which is hifurcated at its rear end to provide spaced portions 19 which straddle the body land through which portions and openings 20 formed in the body 1, is litted a pivot pin Q2, the piu being adapted to be litted through the openings Q() iu tcrchangeably so that the arm 18 may be pivotally supported at various elevations. It will be observed by reference. to Figures 2 and il ot the drawings that the spared members ot the lover VG st-raddle the arm 18 and the arm is `formed with a longitudinally -extending slot 23 through which and openings` in the stems 1l ot the side members i' otthe hand lever is fitted a pivot pin 211. lt will now be evident that when the lever is elevated substantially as illustrated in brolrn en lines in Figure 1, the pin 2a riding` in the slot 23 will ellect anV upward swinging movement ot the arm 18 whereas, on the other hand, when the lever 6 is swung downward-- ly, the pin will ride against the lower wall of the slot 23 and the arm will be swung downwardly about its pivot as shown in tull lines in the said figures.

At its outer end 'the arm 18 is formed with. a bearing sleeve 25 in which is rotatably mounted a shalt 2G. A pin Z7 is titled through this shalt and engages the under side ot' the said sleeve 25 so that the shaft is prevented from sliding upwardly in the sleeve beyond a predetermined position which 'that illustrated in Figure 1 ot the drawings. The lower end oit the shatt- 2G is fitted into a socket provided in a cyliir drical head Q8 which is provided upon under tace with spaced lugs 29 designed to engage the usual notches or grooves formed in the upper side ot the valve head l-l, the head 28 being held assembled with the lower end ot the shaft by a pin 30 which is .fitted diainet-rically through the head and the said lower end oi' the shalt. The upper end ot the shaft Q6 is preferably squared as indi cated by the numeral 31 for a purpose which will now be made apparent. ln practice, several of the heads 28 will be supplied with each valve tool and the heads will be o'l ditferent diameters and have valve head engaging lugs ont different sizes and dillerently spaced and, it' desired, as shown in Figure 1, each head may be provided, in addition to the lugs 29 upon one tace thereof, with lugs 32 formed upon its opposite lace, the lugs 29 and the lugs 32 being dil'lerently spaced and oi dilierent sizes, thus providing for a wide range of choice in the use of a minimum number ot the heads Q8.

ln order that rotary motion may be iinparted to the shaft Q6, means provided which will now be described. The numeral 23;; indicates an arm which is pivotally mounted at its rear end by means ot a pivot pin Bel, upon the head 4l at the upper side ot the said head and substantially midway hetween the ends thereof', and this arm ll e2- tends forwardly Atrom the head and is provided at its forward 'end with a bearing sleeve in which is slidably and rotatably mounted shaft BG, a crank handle 37 boing lined upon `the upper end oi' the shaft and providing means whereby the sl may be manually rotated. At its lower end ldie att Btl is provided with a head ll having a sfpiarwl. socket :lll to lit the squared upper end 3l ol: the shalt 2G as illustrated iu Figure 1 ot' the drawings. Y

From the Atoi-egoing description ol this embodiment ot the invention it will be uuderstood that in the use ot' the saine in eriading valves the lever G is to be .first swung upwardly to sul stantially the broken line position shown in Figure 1, the pivot pins 8 and 22 having been previously adjusted in the openings 5 and 20 respectively in llO cordunee with the engine, the valves of which are to be ground and likewise in accordance with the dimensions of the valves. The orlte'd end 3 of the arin 2 is their en g1 ed be- Heath the washer Wr upon the valve .stern S, und the tool positioned substantially upright and the lever swung downwardly until the head QS properly engaged with the heed H of the valve to be ground. In the meantime the she'ft o6 hes been .slid upwardly in the lle'aring sleeve 35 so as to permit of niovehierlt of the squared upper end of the shalt 2li past the head 35i at the lower cud of the said sliaft 36, und after the shaft l i6 has been adjusted in the manner stated so are to bring its heed 28 into engaement with the valve head and `with the said shaft in arial :durement with the valve stem, the shaft le is slid downwardly through the sleeve ard this adjustment of the shaft iii) lill

'E iii uprivl 4l that in the use together with a downward swiugiirg Inovetuent of the? arui ll will permit ot the head bei ai; cnfgafrcdwith the squared upper end of the shaft i suitable degree of pressure muy then be exerted in a downward direction upon the handle i7 of the lever (l so as to exert pressure against the valve head H in a downward directiou and inasmuch as downward niort-ment of the lever 6 will ei'- ilect. in a scuse, an adjustment of the valve engaging' head 28 and the forked end 3 of the arm 2 toward each other, it `will be understood that the pressure exerted upon tl l lever will serve to maintain the tool steadily 1t position` and assembled with the rave u rile the crank handle .5T is rotated haclawardly and forwardly to effect corresponding' rotation of the valve heed and thus fried the suine to its seat. It will be quite evident that the pressure exerted upon the valve head rnaybevaried by a correspoiuling variation in the pressure exerted upon the lever 6.

It Will be observed by reference to Figure of the tool just described the pivot 24, in the extremo lowered position ot the arm 18 and lever 6, is located in rear of a vertical line passing through the pivot 8, the pressure exerted upon the lever being only sulicient to insure of stability ol the tool while being' operated to grind the valve.

Figure of the drawings illustrates the munter in which. thc tool is employed in compressing; the valvespriug' so as to clerute the washer VV' aud permit of withdrawal ol the pin P and in this iigrure parts which correspond to those in Figures l to et inclusive are indicated by the same reference 'numerals inasmuch as the tool is identically the same tool with the exception that the pivot pin 34 has been Withdrawn `and the urn) and the shaft 36 supported thereby have beenremoved as these parts are not required when the tool is put to the use shown in the said Figure 5. By reference to the said ligure it will be observed that the pivot pin Q2 has" been removed and inserted through an openin more elevated than the @priming it white il was engagea in Figui-t, l although, under the conditions? illustrated in Figure 5i, the position of the pivot pin S is not required to be chan-ged. In using the tool to compress the valve spring and pcr`- mit of extraction of the pin P, the heed 28 may be permitted to remain in y place as shown in Figure 5 so as to conveniently adapt the lower end of the shaft 26 for engagement with the valvehead H, or this head 28 may be removed from the shaft by withdrawal of the pin 30 and the lower eudoif the slratt may be brought into direct eu ement with the valve head, this being;r a more mutter of ehoice and immaterial so far as operation of the tool is concerned. In `any event, in using the tool as shown `in Figure 5i, the lever t is swung downward-ily to substantially the full line osition shown inthe said lig-ure, the parts `aving` been first adjust-,ed to the position shown in broken lines and the tool bodily shifted so as to bring the forked end of the arm 2 into mgtigement beneath the Waslrer W and the head into engagement with the head ol? the valve `The lever (5 is then swung downwardlyas stated und as its downward movement the pivot pin 24 will ride in the` slot 23 until it passes to u position forwardly of a vertical line intersect-ing the pivot pin 8 at which time the lever will be autornaticali.,v locked in its lowered position and the spring i" will be compressed and the washer W elevated suflircntly rar above the pin P te `permit o" ready extraction of the pin as" clearly shown in broken lines, in the instance" of the said Washer and spring, and in full lines, inthe instance of the forked end of the erin 2, the said Figure 5. After the pin P has been withdrawn, the lever 6 may be swungr up- Wardl so as to effect separation of the forkec end 3 of the arm 2 and the head 28 from `the Washer lV and valve head H thus permitting the valve and its stem to be is eontinired,

Si) r ilo bodily extracted and the spring S to be vention it will bc seen that there is provided a tool `which may be very conveniently adapted `for use .in either the grinding ol." the valves of internal combustion engines or in tho compression of the `valve springs so as to permit of removal of the valves and` it will likewise be evident that when the tool i is employed as Shown in Figure and the lever is adjusted to the full line position shown in the said figure and becomes locked, due to the passage of `the pivot pin 24fpast dead center, the tool may be released and will remain in its clamping adjustment while the pin P is being extracted.

It is to be understood, of course, that varions changes may be nrade, Within the scope of Whatis claimed, Without departing 'from the spirit of the invention.

Having thus described the invention, what claim is:

l. A valve tool ot the class described coinprising,l a body member havingl an arm at its loiver end provided with means to straddle a'valve stein and engage beneath the spring thereon, an arin pivotall y mounted upon the body, valve head engaging means; supported by the ar-ni above and in opposed relation to the stein and spi ineens ott the arm, lever nounted upon the body, and an ele "ien carried by the lever and slidabiy enactingwith the a-rin to effect swinging adjustment thereof, in the movement ot the lever, and thereby etiect adjustment ot the valve head engaging ineens into and out of active position, the pivot for the lever and the said element upon the lever which coacts with the arm being so relatively lorated o eli'ect locking' et 'he lever when ad'usted to the posit-ion in which the arm is held by the lever, with its valve head engaging means in active position.

fr valve tool oit the clase described comprising a body member having)` an arm at ite lower end provided with means to straddie a valve stem and eneaq'e beneath the spring thereon, an arm pivotaily mounted upon the body, valve head engaging means supported by the arm above and in opposed relation to the stein and spring` en 'aging means of the erin, the said arin having a longitudilnil slot therein, a lever pivotally mounted upon l body, a pin carried by the lever and slidabiy engaging i the said slot whereby tooperatively connect the lover with the arm to et- 'eet adjust-nient ot the arm into and out oi? active position upon adjustment et the lever,

the pivot for the lever and the pin upon the arm being so relatively iocated that when the inver is in position to hold the arm active, the pin vvill be at that side of a vertical lino passing through the pivot for the lever opposite the sido at which it is located when the lever is in position to hold the arm inactive.

nr valve tool of the class described ooma body,7 member having an arm at its end provided with means to straddlo a valve stein and engage beneath the spring thereon, an arm pivotally mounted upon the indy, valve head engaging moans supported by the arm above and in opposed relation to the siem and spring; engaging means et the arm, a lever pivotally mounted upon the bo v above the arm, the said arm having a roi itudinal slot therein, a pin carried by the lever and Working in the slot and estabiishing operative connection between the lever and :ii-in to e rif'oct swinging adjustment oit the arm upon actuation of the lever, nieveinent of the lever in one direction Serving to elevate the erin and litt the valve head engaging means to inactive position and moveiuent et the lever in the opposite eirection serving to lower 'the arm to move the valve bead en`v means into active engagement with the i alve head, the pivot Yfor the lever and the pin upon the arm being so relatively located that in the tiret mentioned position oit the lever the pin will. be at one side ot a tical line Liassino` through the pivot for i er and, when the lever is in the other Y r on, will be at the other side of said line to eiieet automatic locking ot the lever in the last mentioi'ied position.

in testimony whereof my signature.

JOHN F. SETH.

Images