US1445708A

US1445708A - pedeb qfwv

Info

Publication number: US1445708A
Authority: US
Publication date: 1923-02-20
Anticipated expiration: 1940-02-20

Description

" To all fia/710m "it may] (font/miv?,-

15 parts are designed to` releaselout a sing,

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1 i i" i v nennst Penitentiair,

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valeva-ermite tirannia.

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\ l Be it known tha l, Rennerlhsonnonis'* 1 citizen or theUnited- States.` residinginthe city of Nev/ark, county oi1 Essex, and

` nvseiful improvement in Valve-Sprinn" Ligt ers, oi 'which the following is a specification.

Mv invention relates `to deviees' 'for lifting onooinpressinp; the springs "which seatfthe valves of internal Combustion engines, so that the valves maybe` disconnected from the engine. p Manv diiierent kinds oi devices forthe purpose have yheen proposed, lint in.

a majority if not allfojf suoli devices, the

valve at atiineg this requires thatthelii 'er mast helreset :[or each valve, While one hand ofthe operator is occupied with holding; the

` device and the other hand is tree to nilanipnlate the valve," with an` attendant eapendie i ture oittn'iueh time and patience. llVith any t "improved litter, when set in plaee npondthe engine trarne, the turning oi the pinion i shaft will com-press a pair of springstothe desireddegree toinake the valve retaining pins "accessible, and there remain looked, While both oit the `oliei'ators hands are free i to inaniprdate` the valve and` its parts,` the `entire operation oit completely `detaehing -a :pain` ot` valves occupying lessuthan `one `iniilnte. t in the aeeonipanying drawing", I have shovvntheimproved litter as designed pair-` tienlarlv for the Well-known Ford engine;

"only aslight Change in the dimensions et the litter to other makes of engines,` `Without in anyway oh ang'` ing the mode or principle 'ort operation` ."Mltnthe drawing, V i i i Fig'. l a front elevation oithefliitei,

` `Witlr-the engine parte shovvn in dotted lines. i Fig. 2 is 'a side elevationfot the saine. a

`z Fig. 3 is a plan vievv; l n

i Fig. @is a detachedplan view of the litt-` `innplate..` 1 Fig. 5 a section on line VMV oi' Fig. 4t. lfnnearly vall of the modern; *forms oi" internal ooinlnistioir engines,

haustvalves are arranged in pairs, with one "pair ifor each engine cylinder. This makes that the partiealarly` `those used in automobiles, the! infel `and wmf ` ease to a. short distanee above said nipples.

PoppetvalveS are located `directly above and inline 1with said pins with their stems tin position to he forced: upwardly bv the and fall of saidfpins; Springs o surronnd said `sten'is `and are supported upon spring @nps 6, which in tiirnrest pins Z,`the latter heiiiginserted in aper-` tures in said stems;` The lipperends ofA the springsai'e Confined` beneath an;`overhanggingV parteir the engine frame" (not shown), so as to be underConsiderable Compression to normolly -hold the `valves uponl their seats. lWhen it is desired to renoove thevalves for repair, i it1 is necessary" tof Compress said springs so as to reniovethe pins 7, in order valves niay be Withdrawn up- Wardly,` t My improved lifter consists oit the 'nietal irane"naadenpfoi` the foot 8, head 9 and integral conneeting` standard i 10, of een# venient Widthto place between pair ot the valve springs 5, with theifoot 8 restingn upon the orank oase. The head 9 has the vertical? hole drilled"throughit as "at 12 lin said hole;y

the stern, or rack 'le ot the ii'itinfg plate is insertedandhvvvhieh it is gaidedin its vertical movement. The stein 1 3 is provided 'with raekteeth 15in one side as shoivn`.' The lilitinggplate isoiithe general Contour shown in Fin". kliaving a marginal ,flange lnpen it which serves not only to give it additional *strength but also to 'form af "means for properly7 locating` the springoups 6.

'llheplate iseut ont;` as at 17, 17, so that4 no matter `what positiontheretaining` pins naatTA `ass1`i1ne,they Will not be interfered ,Withlov theplateivhen it is elevated-` rllhe .backside ofthe lifting; plate is 'cutout as Lat 18 to t slidingly ht against `the: standard l0, which serves as a guide for the np and down movement of the plate. The plate 14 is rig# idijv connected to the lowei1` end oi' the raek horizontal aperture is drilled into the head at 19, intovvhich a See-tion of pinion rod is insertedto mesh with the rack teeth l5. L rlihe projecting; end of the pinion redis turned down asat20 and is' oi' sufficient length to extend beyond the adjacent lOb ' head parts of the engine, so that the Wings 2l of the rod Will not interfere therewith When turned. The inner end of the pinion rod 22 is circuniferentially grooved as at 23, and the' retaining pin 24k is inserted through an aperture in thehead 9 to register with said groove and thus holdthe rod 22 in place. A gravity paWl 25 is pivoted upon the front of the head 9, in position for its point to engage the teeth of the pinion rod and hold lthe same against reverse movement.

The bottom of the foot S is shaped to lit the crank case with the forivard lower edge of said foot engaging the usual flange upon the case. The aperture 19 is of a diameter to receive the pinion rod 22 and form a bearing for the points of the pinion teeth.

In operation, the lifter is placed upon the crank case of the engine With the foot S between a pair of nipples 2, and the plate heneath the corresponding pair of spring cups 6. The rod 22 may then he turned hy means of the Wings 2l, whereupon the rack .i3 will be elevated and With it the plate llt to compress the springs 5 sui'iiciently to permit access to and the removal ofthe retaining pins 7V. The paWl 25 engaging the teeth of the rod 22, will hold the springs compressed 30 Without vfurther attention, and the valves may now be removed for inspection and repair, or the valve seats re-ground as desired.

Upon restoration of the valves and the insertion of the pins 7 into the stems'l, 'the pawl 25 may be lifted from engagement with the teeth of the pinion rod 22, and the rod again turned to relieve the compression of the springs, and finally the device may be removed.

It will yloe noted that the pressure exerted by thesprings' upon the lifting plate le is equalized upon the ends thereof, so that thereis no binding of the rack or stein l?) in the hole 12, it slides vertically Without undue friction, and the device operates quickly and effectively. It is self-contained, easily operated and lhas few parts which are not 'liable to become disarranged or out of order.

I claim zil. In a valve spring lifter, the combination of la frame` comprising a supporting foot, a. standard rising from said foot and a having a lvertical aperture therethrough, with a lifting plate having a rack fitted to slide in said aperture, and a pinion journaled in said head for engaging said rack to elevate said plate.

2. In a valve spring lifter, the combination of a frame having` a supporting foot or base with a standard rising therefrom and a head 'secured to the upper end of said standard and having a vertical aperture therethrough, a spiing-lifting plate having a ciuitrallv .scoured rack thereon, said rack being vcrtif cally guided in said aperture, and a pinion jouriialed in said head for engagement with said rack to elevate said plate and therebv compress a pair of valve actuating springs supported upon the ends thereof.

ln a valve spring lifter, the combination of a frame comprising a supl'iortingl foot, a standard rising from said foot and a head hav" a vertical aperture therethrough. with a lifting plate having a rack fitted to slide in and be guided by said aperture.y a. pinion jouiuallcd in said head for engage ment with said rack to elevate said plate, and means for locking said pinion to secure said plate in any adjusted elevated position.

t. In a valve spring lifter, the combination of a frame, comprising a foot or base, a standard rising therefrom, and a head scoured to the upper end of said standard, said head having' a vertical aperture therethrough, a spring lifting plate, having a. een trally secured rack thereon, said rack being vertically guided in said aperture, and a pinion journalled in said head for engage ment with said rack to elevate said plate` and a locking pand pivotally mounted upon said head for engagement with the teeth of said pinion to lool; said rack and plate in any desired elevated position.

5. In a valve spring lifter, the coinbinatii'in of a frame, comprising a supporting foot, a standard rising from said foot, and a head upon the upper end of said standard, said head having a vertical aperture therethrough, vvith a lifting plate provided with a pair of annular spring seats at cach end thereof, and a central rack rigidly secured thereto, and fitted to slide :in said vertical aperture, a pinion journalled in said head for engaging said rack to elevato .said plato and a locking paivl pivotcd upon said head in position to engage the teeth of said pinion wherebyv said rack and plaie maj.' be lovhcd iii anyv one oi" several :id iustcdV positions.

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