US1009454A - Shock-absorber. - Google Patents

Description

H. C. TURNER.

SHOCK ABSORBER. APPLIOATION FILED AUG,21,1907.

1,009,454, Patented Nov. 21, 1911.

PATENT ont/fion.

HARRY c. TURNER, or Los ANGELES, oALiroRNrA.

. 'sH'oc -ABsoitBna To all whom 'it 'may concern: e

Be it known that I, HARRY C. TURNER, a citizen of the United States ,=residing in the city of Los Angeles, county of'Los Angeles, State of California, have inventedl n'ew and useful Improvements in Shock-Absorbers,

' of which the follow-mg is a specification.

This invention relates to improvements on my invention for which Letterslatent No. 819,386, dated May 1st,1906,werc granted me and also on my invention shown and described in my application for Letters Patent bearing 23, 1906, and allowed August 2, 1907 and the object thereof is toprovide a novel ar rangement of parts whichJenables the use the object of my breakage of y .of an annular spring in sprmg and which .lso'ena -les the casing 1n ltion to a vehicle.

)lace of a coiled which the parts are laced to .be rendered liquid tight so that t 1e wearing'parts may be completely surrounded by a lubricant which enhances their wearing renders .their action uniform.

. I accomplish' this object by means, of the device described herein and illustrated in the accompanying drawings in whichz Figure 1,--is a side elevation of'myimproved shock absorber showing its lapplicaf Fig. 2,-'.is, a verticalv secf tion of the absorber, theseetion through the ratchet being taken on line 2--2 of Fig. 3. Fig. 3,- is a section taken on line 3-3 of Fig. 2. Fig. i,-is a section taken on line 4-4 of Fig. 2.

Fig. -5-is a section taken on line 5- 5 of Fig. 2.` Fig. 6,-is an enlarged detail of themeans'or preventing the case from unscrewing due `to thejarring action'of the vehicle.

Referring tothe drawings 10 designates a portion of a vehicle frame and 11 a portion of the frame supporting springs. Upon the passage of the vehicle o ver an obstruction or 4uneven surface, spring 11 at iirst is forced upwardly and subsequently frame .10 carrying-the body tends to rise by the action of the compressedjspring. It is absorber 'to allow a free and unimpeded upward movement of the spring with the full spring resiliency but to so restrict the upward movement of the,

frame that the frame and body will not be thrown violently. upward with attendant discomtiture Aof passengers and possible the spring'by above its normal position. To this end easing 1 1- of the abscrber is secured by' bolts 12' S. N. 297,457, filed J anuaryy qualities and to frame 10 and connecting bar 13 is connected to a'pivot 14 on spring clip 15 beingl adapted to oscillate lever 16 to which it is 'pivotally secured at 17. Lever 1G is formed lntegrallywith lug 18 as shown in Fig.' 2,

which projects linto sleeve 19, being rota i tively4 secured thereto by forming an mi: gral part o-plng 18. Sleeve 19 extends' beyond the end ot plug. 1 8 and" encompasses a boss 21 on rear member 22' of ease 11. A bolt 23 passes longitudinally .-throughplug 18 and screws into boss 21 to -the bottom 'of the bore therein as shown in Fig. 2 and holds pluglS from slipping out of sleeve 19, .at the same time forming a bearing for the plug so that whenlever 16 is moved theplug will not move out of aline-A means o' key 20- 'ioV ment and bind the different working parts.v

Cap 24 is 4internally threaded and adapted t o screw onto rear member 22 as shown in 141g. 2, a spring clip /25 mounted-on the rear member being adapted to enter notches. 26*

in lthe rear edge of the cap and prevent the same from nnscrewing. Cap 24C is provided with a central bearing V27 which surrounds sleeve `119 at its outer end and is provided with stuiiing bo.\r 28 adapted to' render liquid tight the joint between sleeve 19 and lbearing 27. From the above description it is manifest that sleeve 19 will be rotated when Alever 1 6 is-oscillated by any relative movement of the vehicle body and springs. v The mechanism about to be described is designed, to permitl the rotation of sleeve 19 in' one irection without any `appreciable retardation but to present an adjustable reits periphery being carried.

s istanee to the rotation of the sleeve in the opposite direction, which is the direction in which sleeve 19 moves when the vehicle body moves away from the spring.

Molmted on sleeve 19 and rotativ'ely secured thereto Vby means of four projecting keys 30 is'a sleeve 31 which -is provided on with a series of ratchet teeth 32; Rotativelymounted on ratchet sleeve 31 are two plates 33 and 34 which carry between 'themy spring pressed dogs 35 adapted.

to engage 'ratchet teeth 32 upon the upfive in number and ratchet teeth 32`are sixteen innumber and thus only one dog is in engagement' 'th l time and 'it will be4 observed that upon. the 4rotation of -'sleeve 31' through thedistance corresponding to' the length of one tooth there will b e veengagements ofthe teeth the ratchet teeth 'at one is a friction plate 4Q whosecongu; ation is spring', the cap maybe screwed downV upon device.. The entire 'case is filled with a lubrit tive.. lOn the rear side of'plate 33 and'ibetween lar to friction plate 40, is loosely mounted beingnadapted to Apress stationary plate 43 .are freeto rotate and themovement may :take place between the friction plates and riction'plates and the revolving plates.

4friction plates in a lubricant vrenders the .lite

.claim as new `and diretosecure byv Letters by the'idogs. Thus the-lost motion'gofth'eratchet teethl isreduced to a minimum -while the action of the dogs onthe same posithatplate and rear lmember'.22-of case. 11

shown in Fig. 4, the plate shownbeing' .'zhe; other friction plate of thedevice which is constrncted similarly to plate 140. Both of these plates are'providcd witli'finserted frictionplugs 41 0liber or cork adapted. to furnish the requisite amount of friction bctween the platesv on either side or' the fric tien plate. Asecond-riction plate 42, simion sleevel 31- adjacent vplate 34 between plate-34 and a-stationary plate 43 held from rotation by means of lugs 44 on its.

periphery engaging. key ways 45 in-rear mcm'b'er 22. An annular' spring 46 in the shape of .a 4frustum of a cone is interposed between stationary plate. 43 andA cap 24,

against -4 friction plate 42 and holdthe same in engagement `with rotating plate 34 between rotating plates 331and 34 and tric'-l tionplates 40 and 42. Thefriction plates :the stationary plates as welLas between the From the orego-ingdescriptfcn it will-be observed that no appreciable resistance 'will be offered to the movement of my shock absorber. in one, direction while any desired amount of resistance -mayl offered to. the movement in the opposite detection. As the friction plates wear down, the wear being :followed up by the actions of theannular the base member to afford the necessary compression for theetlicientworking of the cant, preferably of semi-'liquid consistency and is'-'prevented from running out of the case by packing box 28 provided especially for that purpose. The immersion :of .the

of the plates longer than-is possible with any'other arrangement, renders the 'action of the friction plates uniform until .the are completely worn out,completely.lubr1 cates all bearings notintended toproduce friction, `and renders the action ofthe dogs noiseless: y 'Having'described smy invention what I "revoluble sleeve mounted in' said case,` a

through-which said sleeve projects, means mounted on the outer end of Said sleevel to case connected 4to saidy sleeve by ratchet -means, 'friction'plates mounted on each side of said' revoluble member, one of sai'diriction plates bearing. against the stationary case, astationary plate .bearing against the outer face of the'other ofs'aidfriction plates, said 'stationary plate having a transverse movement to and from said friction plate but being prevented from rotation, and an annular spring between (said stationary :plate and said cap adapted 4to be pressed. by said cap against said stationary vplate and hold saidfriction plates and said revoluble memberl in engagement with each other. 2. Ina shock absorber a stationary case, a screw' cap for said' jcase,` asleeverevolubly wardly through said cap, an` oscillating lever mounted .on theend of said sleeve, said lever adapted lto be operatedbythe `relative 'mounted on said'ratchet'member, said revoluble member being provided withaiplurallity of spring pressed dogs adapted to en .gage saidratchet member and adapted to rotate said revoluble member together with said ratchet member .in one direction and allow said .ratchet member to., rotate in the opposite direction wit-hout" rotating said revoluble member, fnictionf-plates on `each side of saidrevoluble member, one of said friction platesbearing against said stationary case, a stationary plate adapted to bear against the outer face of the-other of said friction plates, said stationary 'plate being prevented from rotary movement but having a transverse movement to and from-said p1ate,.and an annular spring between. said stationary plate and said cap adapted to .presssaid stationary plate against 'said friction plate.

3;. In a shock absorber a stationarycase, a screw cap for said case, a lsleeve.revolubly -mounted in .said -case and projecting outwardly throughv said cap, said -cap being provided-with a packing gland around said sleeve, an oscillating lever mounted on the end of said sleeve, .said lever adapted to be o erated by the relative movements of a vekeyed to said sleeve within said case a revoluble'vmember loosely mounted= onsaid ratchet ,membeqlsaid 'revoluble lnemberbeing provided with a. plurality of spring pressed dogs adapted to engage said ratchet member and adapted to rotate saidkrevoluble mem- 1.' In a shock absorbers stationary case, a -foile direction and allow said ratchet mem- 130 .ber together with said ratchet. member' in screw'cap adapted to close said case and.

rotateth'e same, 4a revoluble memberin said- 5-.movements of a. vehicle.- rameandsprings, 'a ratchet memberkeyedto said sleevewithin said case, al revoluble4 member loosely hlcle framefand springs, a ratchet member ,mounted-in said case/and projecting outlos ber to rotate in the opposite direction Without rotating said revoluble member, frietion plates on each side of said revoluble member, one of said friction plates bearing against said stationary ease, a stationary plate adapted to bear against the outer face of the other of said friction plates, said sta- 'tionaryI plate being prevented from rotary movement but having a transverse movement to and from said plate, and an annular spring between said stationary plate and said Cap adapted to press said stationary plate against said friction plate. V,

4. ln a shock absorber a case, a revoluble shaft mounted within said case and project- 15 for said case, and an annular vspring between 20 said cap and one of said friction plates.

In Witness that I claim `the foregoing I have hereunto subscribed my name this 13th day of August, 1907.

HARRY @.TURNER lVitnesses EDMUND A. STRAUSE, OLLIE PALMER.

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