USRE12437E - Reissued jan - Google Patents

Description

BEISSUED JAN. 16, 1906. J..M. M;TRUPFAULT- FRIGTIONAL RETARDING MEANS ,FOR SPRING VEHICLES.

APPLICATION FILED TUNES, 1905. I

2 SHEETS-SHEET i W3 l7zvce iztof 0 g vj l v are respectively -TRUFFAULT, engineer, of 51 well-known kinds.

I particularly the brakes to retard the too-rapid vibration or H movement of the parts.

cle to which it is applied.

tion is shown as embodied in a motor-tricy- -and Fig. 2 is a and springs.

UNITED STATES PATENT FFI E-f LEsi-iioi-rir'i. MARIE TRUFFAULT, or mars,

FIFTY-ONE onn-nonnnnnrns 1T0 EDWARD FRANCE, ASSIGNOR or VASSALLO HARTFORD AND FORTY-NINE OND-IHUNDREDTHS TO GEORGE H. HARTFORD, BOTH OF ORANGE, NEW JERSEY. v

' FRlCTlONAL .RETA'RJDING' I Specification'of Reissued Letters Patent.

MEANS FOR sPRme-vEi-ucLEs.

Reissued Jan. 16, 1906. I

, Original No. b95508. dated March 18, 1902. Application for reissue filed June Q, 1905. Serial No. 264,528.

To all whom it may concern/:

' Be it known that I, J ULES MICHEL MA I Avenue des Ternes, in the city of Paris, France, have inventedImprovements in Frictional Retarding Means-for Spring-Vehicles, of which the following is a full, clear, and exact specification.

This invention relatesto the class of v ehicles in general wherein springs are employed .to relieve olting and vibration,

and particucyclesof the various Notwithstanding the use of springs for supporting the bodies of such larly motor cars and vehicles, much inconveninece is felt from the,

shocks and vibrations due to the wheels, and front steering wheel or wheels, striking obstructions in the road.

The object of the overcome or material y and vibrations by combinin' with the springsupporting devices certainv rictional devices between the moving parts or between the running-gear and the spring-supported parts whereby said frictional devices serve as In the accompanying drawings the invencle and as applied to the front thereof.

In said drawings, Figure 1 is a side elevation of the front portion of the tricycle, showing the mountings of the front wheel thereof;

front elevation of the same arts. These views are on a small scale. ig. 3 is a sectional View of the spring-casing Figs. 4. and 5 are respectively a' side elevation and sectional View of the connection of the spring with the running-gear, to be hereinafter described. Figs. 6 and 7 a side elevation and transverse section of the frictional joint couplings or connections.

B is the steering-stein, mounted to rotate axially in the tubular frame member as usual, and A is a curved Republic of' resent invention. is tomodify these shocks arm or bar secured rigidly l to the lower end of the stemB and extending downward back of the wheel R,'which latter is indicated merely diagrammatically in Figs. 1 and 2." The bar. A has jointed'to' it two arms h, which embracethe wheel R and extend forward to the hub thereof The moveby dotted lines in Fig. 1, cause the arms hto move or swin about their jointed connections with the lower end ofthe bar A.

Mounted in front of the stemB and secured thereto by a'collar a i 3. In-this casing is a piston c on a pistonrod (1, which extends down out-of the lower is a spring-casing C'm the form of a'tube and seen detached-in Fig.

' ments of the. wheel up and down, asindicated end of the casing O and is coupled to afork-e, I the branches of which extenridown at the sides of the wheel, Fig.2, and are jointedgrespectively, to arms or branches g on an formingpartsof the arms h. Inthe casing C is a compression-spring D, situated between the piston c and the cap b on the upper end of. the casing. From the respective branches f of the fork e arms a, secured to-the branches at x, extend up to thecasing C and carry at their upperends pads o, whichbear yieldingly on said casing.

nowbe described with reference to Figs. 3 to 7; which'show them on a scale larger-than that of the principal views. As seen in Fig. 3, the spring'D is made of two or more'coilsprings, one-within the other and preferably coiled" in opposite directions also, the outer spring Preferably, will be of thicker wire than the one next inside of it, and this latter will ,be of thicker wire than that one within it, so that the powerto will be about e qual mall the springs. chamber in the casing C occupied by the spring will be filled with grease of about the consistency of-butter, this grease filling all the space not occupied by the spring itself. When the wheelR' is driven upward by an obstruction, the springeyields underthe npward pressure of the piston 0;. but the friction of the latter in the casing and the movement of the coils of the spring in theithick grease will'offer a yielding resistance and tend toretard the movement. The pads Q) on the arms u are of somesoft material-as leather,

The specific'details of the construction The for eicample-and these pads press yieldingly on the surface of the casing C with'a gripping pressure, thus also aiding by friction to retard the upward movement of the wheel R with a yielding resistance and cooperating with the retarding-spring. The frictional splined conical washer s and a nut t.

devices at the joints where the arms h are 'coupledat one end to the bar A andat the other end through the lugs g to the branches f of the fork areillustrated in detail in Fig. 5. A bolt 0, fixed at its head in the lug g and having a conical part p, is provided witThh'a e eye 7, through which the bolt 0 passes, is conically countersunk at its opposite ends and provided with leather washers q q.

- When the bolt is in place. and the nut t -are interposed, and thus excessive wear is avoided. An additional advantage accrues from the rotary type of device in that substantially the whole area of the wearing-surfaces are in constant contact, and therefore. they wear evenly. Obviously this device for producing a frictional yielding resistance to the movements of the spring-supported parts of a vehicle may be applied in various ways according to the particular construction and the arrangement of the parts of the vehicle,

and it may be .used with or without the other frictional devices heretofore described. In

this applicatio'm however, I make no specificclaim to the several other specific forms of retarding devices, but confine myself to the forms which'are' pointed out in the claims.

I am aware, of course, that in s ring-vehicles as now constructed there wil often be found an immaterial amount of friction at the connecting points between the .parts which move relatively to each other; .but this friction produces no useful result or effect whatever, whereas in my construction the yielding friction is very material, and while permitting the spring to compress and expand smoothly it exerts at all times a uniform retarding or slowing effect thereon when the spring expands I while it cooperates with the spring when the latter is under compression. Obviously the effect of my invention wilLbe to materially modify the functions of the-spring and cause it to act more slowly, but at the same time permit it to act.-

i a. clamping-bolt for holding gether, and arms for connecting said friction l members to the parts of thevehicle between smoothly and evenly. Obviously, the yielding friction must be regularized and uniform and not arbitrary and irregular in sesses the numerous advantages above set forth;

Having thus described my invention, what I claim, and desire to secure by Letters Patcut, is

1. In a vehicle, the combination with a supporting-spring between the parts of thevehicle movable relatively to each other, of rotatingfrictional means between the partswhich provides a yielding resistance to movef merit, said means producing a retarding effeet on the reaction of'the spring, substantially as described. g

2. In a vehicle, the combination with the Wheel thereof, the frame carried-bysaid wheel and'a spring interposed between said wheel and frame, of rotating frictional mechanism which provides a yielding resistance to the movements of the parts, said means serving to materially and uniformly exerta retarding effect on the said movements of the parts in bothdirections, substantiallyas described.

3 A retarding device for vehicle-springs comprising rotating friction members, ad-

justable clamping means, and means for con,- necting the rotating members to the parts of IOO a vehicle movable relatively to each other,

substantially as described.

4;. A retarding device for. vehicle-springs, comprising a plurality of friction members means for regulating the pressure between said members, and arms for connecting the said membersto the parts of a vehicle mov; able relatively to each other, so that the movement of the friction members-is less than the relative movement of the spring:

separated parts, substantially as described}.

5. A retarding device for vehicle;springs 1 comprising a plurality of friction members,

adjustable means for regulating the pressure between said members, and operating means for connecting said members to the parts of a 3 vehicle between which the springs are interposed, the contacting area of the friction-surfaces of said members being substantially unvarying and uniform in extent irrespective of the relative position of said members, substantially as described.

6. A retarding device for vehicle-springs comprising a pair of rotating friction mem bers, friction material between said members;

the parts tcwhich the springs areinterposed, substaii -meai1s-for regulating the pressure between said'members, and arms for connecting the said members to the parts of a vehicle movabletrelative'ly to each other, the parts being.

so arranged that the movement of the-fricjbers;: frict ion.material between said members, a clamp ng-bolt for holding gether and arms for connecting sai friction tiolfinembers is less than the relative move nientof the spring-separated parts, and, a

ed connectionat the outer end of one of rms, substantially as described.

' a pair of rotating friction mem- -the arts to- 'members with the parts. of the vehicle bee,

plurality'of friction members, means for regu tween which the springs are interposed, and a bin ed connection on the outer end of one of sai arms, substantially as described.

va vehicle, the combination with a supporting-spring between the arts of the ve cle movable relatively to eac other, of a sting the pressure between said members,

i and means for connecting the friction membersto the vehicle,' the said members being saidfmembers being substantially uniform .andIunvaryin'g in extent, irrespective of the so'ar'ranged as toroduce a retardin eflect upon the action-o the 18 ring and t e contacting area of the friction-surfaces of the ating t and means for connecting the friction mem-.

nectin'g means being arranged so that the movement ofthe 'friction'members' is less ,retardmg' device for vehicle-springs relative ositions of the parts, substantially asdescried. h I

, In a vehicle, the combination with a. su porting-springfbetweenl the-plarts of the ve cle movable relatively to ea luralit of friction members, means for reg].1 he pressure between said members,

other, of a' bars to the vehicle, the said members being so arranged as to reduce a retardin effect uponv theaction Q the spring, and t e con"- than the' relative movement of the s ring wheel, theframe, the arms pivoted to the frame at one'end, and thes ring between bearin between the arms and the ame, each 0 these bearings comprising a bolt 0,

' vin one-of the parts and bearingcones p and s, and a nut t, the said cones .andnut, v

and the coned leather washers g and q in the eye of the other part, substantially as 'de scribed. i 1 v In testimony whereof Ihave hereunto set said arms and frame, of thefi-lctional ivot-'- 7 my hand in the presence'tw' subscribing wltne'ss'es f "a: n

. ifJuLEs meant mama; '1 witnesses'i' Hanson (x11, Joan BAKER.

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