US1269952A

US1269952A - Valve-spring lifter.

Info

Publication number: US1269952A
Application number: US15017617A
Authority: US
Inventors: Thomas O Mountain
Original assignee: C W MACE
Current assignee: C W MACE
Priority date: 1917-02-21
Filing date: 1917-02-21
Publication date: 1918-06-18
Anticipated expiration: 1935-06-18

Description

T. O. MOUNTAIN.

VALVE SPRING LIFTER. i APPUCATION FILED Fa.21. 19w.

1,269,952. PatntedJune 18,1918.

2 SHEETS-SHEET I,

T. 0. MOUNTAIN. VALVE SPRING LIFTER.

APPLICATION FILED FEB. 2|, I917.

Patented June 18, 191&

2 SHEETS-SHEET 2.

11 mm wmwh 9 ;hhimso;mmms mmn w i To. qm i imuwnham; 1 7' 5' Edit knowh/thatIQTHoMlxs O. Mgqy. m a i iz moh h llnit dvS ;yt@s,. :e ;ding at El Bi sb'i-jpftlie qdupty of 13:150; and, Stgfig 0i, Texas ve, igven c i a lllg new zirgdylls e Sp n Li t??? Qfi h" specificatjbn H stem of f he Val-Ye;

The, inventi ha a? ,fhrtheh hj qfl d provide a" Qeyigqi i -thG abQVG: despnfoed characters employ i lever aw.

adapted g a geL-It fi alveg spring; with the lever th 1Wqp mblei ohlii ng the p wi ui' he a ovi lh a seco d j w j b -PQ i'fhfii h l z w for sup rt ing the in W? H h ld the 2 p 'i g :'e vatedr 1 Y A; furthgn' objecp oi thg; invention :is\ to provide; means; 3011 thavmain. jaw of the device f n autQmQfiQ3HY I the 11195 t: ih tmhnh wi r pec to porting the'main a w h And the invgntipp, has; as 5; still; furthgp; object to PIIOYidQ an'i ariranggmepp wherein the lever: fdfthijma i nij willg bQ; ifgrgpgtl y a h l w h im "d ihqh d i q l e h ddih th t: nh xflihfiance wh e; the Presence; hi h l= QQ d-hhI P@1: the o eration of, nmt n the; pig with the -s m difiil i hfiwsh-i fih, the slhandlg 'majbiea ily remp vd. he d hhhlhn al. Willi hPP, @r-. as'thede5criptidmp11 "gtlssand. in the draw-x ings h r i I ha e" lu tm hd the 19m ferred qmhodin iepbibf he'finyeghtim; 341d herein similar ,rlei ne qe-.- qhamc ex sighate h hndi wi h 1 rhu quh th several. vigw; r

r s l Ql M 19 ;Sh ,Wh W, improkredQwialve. s gr i ng 111191; 1;; QDI IlB E P L i h a riqr ibn 29hwnh2 hl Pm? 2i- VLLVE-SIEBISG LIFTER.

t re the upphhh flhh innfef' extremity, 'ig'gfoi i alihqmbhshoni eng ned an s mm h hi i ih ior 1. v,

-EigflZ. i'slk'a si .11 new" 1 ll p j ttih 1' f: thh QLi: the; valve; spring; am

F g- 3 i h h i h mh hh y pr ject hg; oh e y hm g hi ing in the bQ Qm- W I i hg gagement with the rack upon the shank 14 of the jaw 13. At its opposite extremlty,

.the pawl 18 is formed with a reduced cylindrical shank or stem 20. The shank 12 is internally screw threaded adjacent the outer extremity of the recess 17 and fitted into the said recess is an externally screw threaded plug 21 having an axial opening 22 formed therethrough slidably receiving the free extremity of the shank of the pawl 18 for supporting the pawl for move ment longitudinally within the recess 17.

Interposed between the plug 21 and the body of the pawl, is a helical spring 23 arranged to surround the shank 20 of the pawl and normally urging the pawl to active position with the tooth 19 arranged to cooperate with the rack 15 upon the shank 14 of the jaw 13. In this connection, it is to be observed that the plug 21 is, at its outer extremity formed with spaced sockets for receiving a spanner tool so that the plug may be adjusted longitudinally within the shank 12 for tensioning the spring 23.

Formed through the body of the pawl 18' is a diametric slot 24 having a beveled or ticularly shown in Figs. 4 and 6, slidably fitted through a suitable opening in the lower side of the shank 12. Formed through the upper extremity of the body of the slide, adjacent its forward edge, is a longitudinally extending slot 29 and fitted through the shank 12 to project freely through the said slot, is a transversely extending pin 30 connecting the slide with the said shank with the slide movable transversely through the shank. The body of the slide is, adjacent its lower extremity, formed'with an inner beveled edge or cam face 31 upon the rear side thereof, arranged for engagement, as particularly shown in Fig. 4 of the drawings, with the beveled or inclined inner end wall 25 of the slot 24 through the pawl 18. Consequently, when the slide 26 is moved downwardly through the shank 12,- the cam face 31 of the slide will act against the inclined end wall 25 of the slot for retracting the pawl against the tension of the spring '23 and withdrawing the tooth 19 from engagement with the rack 15 of the shank 14 of the jaw 13. This jaw will then be permitted to drop or move away from the main jaw 10. Upon the release of the slide, the spring 23 will, of course, immediately act upon the pawl to engage the pawl with the shank of the pawl'so that the said jaw may be 100- the said j awfor-holding the jaw at adjustment with respect to the main jaw, the slide 30 being again forced upwardly, as will be readily understood, "upon the outward movement of the pawl under the influence iof the said spring. In this connection, it should be noted that the tension of the spring 23 will be suflicient to overcome the weight of the jaw 13 upon the tooth 19 of sitioned against the jaw 10, as illustrated-in Fig. 4, and held in such position by the said pawl. i J

' Arranged to cooperate with the main jaw 10 is a lever or handle32 formed, at its" inner extremity, with a reduced extension" 33 threaded into the outer internally threaded extremity ofthe shank 12 of the I said jaw. The handle may thus be easily disconnected from the jaw 10 and is preferably milled adjacent its outer extremity,- as particularly shown in Figs. 1 and 2, so 7 that the handle may be readilygrasped.

Slidab1y fitted upon the handle is a fulcrum or sleeve 33 provided at one side with a set screw 34 for holding the sleeve at adjustment longitudinally of the handle.

Formedon the sleeve, is a, hook .35 and de-"v tachably' connected to the said hook, is'one end of a chain or other suitable flexible element'36. Detachably connected to the opposite extremity of the said chain, is a hook 37 providing a suspension device for thefulcrum sleeve of the handle adjustably connected with the said sleeve by the chain 36.

In order that-the operation'of my im-' proved valve spring lifter may; be accurately understood, '1 have, in F igs. 1 and 2 of the drawings,-shown the device incon nection with an intake valveof a 'conventional type of internal combustion engine. One of the cylinders of the engineis shown at 38 and projecting downwardly through the overhanging portion of this cylinder. is a valve stem 39, with'which isarranged to cooperate a push rod 40 mounted in the usual guide 41. Surrounding the valve stem is a valve spring 42 which, at its lower extremity, is received [by a collar 43. Formed through the valve stem, adjacent its lower extremity, is an opening 44 adapted to receive a pin for retaining the spring upon the valve stem.

The present invention is, as previously 1 intimated, designed to provide a device for compressing the spring 42 so that the said in may be readilyplaced in or removed rom the opening 44 in the valve stem. In using the device, the hook '37 is first en: gaged over the head of the cylinder 38 or is engaged with some other suitable portion of the engine above the valve when the chain 36 is adjusted to support the handle 32 an upwardly inclined position with the main jaw 10 ofthe' device engaging o n the .YelYe tem .3? beneath the a 4.3, the supporting jaw *13 being seated vice thus attacheditlie outer extremi y-b the handleBQ ma be" for lifting the valve spring42, as'il lujstrated in Fig; 2.' Uponfthe' l'ifting' of the "said spring, the slide26lis then actuated to re lease the jaw 13 when this" will drbp to engage around the guide 41 of th'epush rod with the pawl 18 coactiiw withthe'fratchet upon the shank t-er, the said aw rgr holding the jaw at adjustment with" respect to the main j aw 10 w support thefsaifd spring in elevated position. NVith the 20 spring thus elevated, theretaining pin for the spring maybe readily fitted through or displaced from the opening" 44 I in the valve stein for either connecting'the spring with the valve ii detaching the spring-therefrom. In like manner, any other "conventional anchor or retainer for the spring 'mayi'be attached to .or .detached" froin*-th:e "'valve stem. "Since, as illustrated in Fig. '2',the-

jaw 13 will, whenadju'sted with respect to 80 the main jaw to seatagainst'the push'rod guide or Other adjacent portion' of the'ene gine, receive the full load fupbn ,the'rnain jaw, the heck-3.7 may be "detached fronrthe engine and the handle 32'l disconnected from the main jaw so tha'taccesssto the valveste'rh will be unhaIIiPB redJ 1 y It will, hljefore, be seenflthat-lprovide a particularly simple and" efficient "construction forthe purpose set forth and a device a secondjaw adjustable with respect to the main jaw for supporting the main jaw in position sustaining a load.

3. A device of the character described including a main jaw, a supporting jaw car ried thereby and slidably connected with the main jaw, means for pivotally supporting both of the said jaws suspended to provide a fulcrumlfor the mainj saw, and

whichmay'be readily used in cdnnelctibn with substantially any conventionaltypeof Having thus described the invention, what the said pawl.

. A 'd iee fih harm e erted 1 .ledi' a ma n aw .rr rii edvith ess d sha a upp ,r j ha ng a h k slTdbi e Dre- W- ain jaw; {a pawl lli l l c sit-i H lQ -j kally 1? ranged" tofengage the" fnk of 1e sup- 7: prtiiig jawhvithtlie said supportifng*jaw adjustable later w ithirl'es p the, main n's' ged at-an to the vawl and lidably connected to 15V, a d

of 'th the shank or the aw, for. retracting j l 5. device of the character described 'ineluding" a niain jaw-provided with-"a-liollow shah ,jasupp'prting'jaw adjiistablewit respect to thaaain awanahaviagia s ank 1idab1y conne't'ed with" the said inaiii jaw, a pawl" s1i1ab1y1niountedih a 25 shame-0f the jaw, plug in said main" j shank, a s ing beafingbetween' th'epawlfa nd said plug and normally urging the paWl'Zto." io operate wijththshahik of thesupporting jaw 'ior holdin'glh e' said jaw adjustment with respedt jtb "the ,{main jaw, and means upon the shank ofg be main j aw for retract- A device of the character; described in} eluding a gnai' axv having a' iiqnew shank; a1 s'upport nig aw ad ustab1e w1t h respect to the manr' jaw m1 raving agsna nk' 'sIid' I ably connected" therewith, ap a wl""slid'ably 100 mcu'nted'inthe shank 6f gthei nairi ,""a plug adj ustablei in saidrna'in' Qj aw fsh'ank, ieldable means bea'r i ng betweefi 'the said plug and the pawland normally urging the Ypawl'ftQTQBp'rate 'with the"shankoftlie 165 sup'porting jaw for holding said support,

mg aw at adjustment, the plug being mov ablewithintheshank ofthe main jaw for tensioning the said yieldable means, and in'eans upon the main jaw for retracting 7. A device of the character described including a main jaw having a hollow shank, a supporting jaw adjustable with respect to the main jaw and having a shank slidably connected therewith, a pawl slidable in the shank of the main jaw and provided with a stem, a plug within the saidmainjaw shank slidably receiving said stem for guiding the I pawl within the shank of the main jaw, yieldable means bearing between theplug and said pawl and normally urging the pawl to coiiperate with the shank of the supporting jaw for holding the supporting jaw at. adjustment, and means the main jaw for retracting the said pawl.

V 8. device of the character described 7 'includlng a main aw having a hollow shank,

a supporting jaw adjustable with respect tothe main aw and having a shank slidably upon-the shank of 126.

connected therewith, a pawl. within the shank of the main jaw and having a slot formed therethrough provided with an inclined wall, means normally urging the pawl to cooperate with the shank of the'supporting jaw for holding the said jaw at adjustinent, and a slide freely connected to the shank of the main jaw and projecting into said slot for engagement withthe said inclined wall thereof with the slide reciprocable for retracting the said pawl.

9. A device of the character described including a main jaw having a hollow shank, a supporting jaw adjustable with respect to the main jaw and having a shank slidably connected therewith, a pawl slidable within the shank of the main jaw, means normally urging the pawl to cooperate with the shank of the supportin jaw for holding the supporting jaw at a j ustment, and a slide freely connected to the shank of the main jaw and formed to cooperate with the pawl with the said slide reciprocable for retracting the said pawl.

10. A device of the character described including a main jaw having a hollow shank, a supporting jaw adjustable with respect to the main jaw and having a shank slidably connected therewith, a pawl slidable in the shank of the main jaw, a guide mounted in the said shank and co-acting with the pawl for supporting the said pawl in its sliding movement, means bearing between the said guide and the pawl and normally urging the pawl to cooperate withthe shank of the supporting'jaw for holdingthe supporting aw at adjustment, and means upon the copies 01 um patent may be obtained to:

shank of the main jaw for retracting the said pawl.

11. A device of the character described including a main jaw provided with a res cessed shank, a supporting jaw adjustable with respect to the main aw and having a shank slidably connected therewith, a pawl mounted in the recess Ofsaid shank, yieldable means associated with the said pawl jaw and formed to co-act with the pawl I j with the said means reciprocable for'retracting the pawl and adapted to be projected to normal position by the tension of the said yieldable means upon the pawl. 12. A device of the character described including a main jaw provided with a shank,

a supporting jaw adjustable with respect to the main aw and provided with a shank slidably connected therewith, a pawl carried bythe main jaw shank, means normally urging the pawl to co-act with the said supporting jaw shank for holding the supporting jaw at adjustment, a slotted slide mounted upon the shank of the main jaw and formed to co-act with the pawl, a stem formed on said slide and freely engaging with the main jaw shank for directing the slide in itsmovement, and a pin fitted through the slot. in the slide and freely. connecting the slide to the said main jaw shank with the slide re- :1;

ciprocable for retracting the pawl.

In testimony whereof I affix my signature. THOMAS O. MOUNTAIN. [,L. s.]

flve cent: each, by addressing the Commissioner of Patents, 1 Washington, D. c." A