US938753A

US938753A - Means for preventing rebound in vehicles.

Info

Publication number: US938753A
Application number: US2??98005A
Authority: US
Inventors: Samuel Furmidge
Original assignee: SUPPLEMENTARY SPIRAL SPRING Co
Current assignee: SUPPLEMENTARY SPIRAL SPRING Co
Publication date: 1909-11-02
Anticipated expiration: 1926-11-02

Description

S. FURMIDGE. MEANS FOR PREVENTING REBOUND IN VEHICLES. APPLIOATION FILED 1730.22, 1905.

988353, Patented N0v.2, 1909.

2 SHEETS-BHEBT 1.

n QZZZEV," I

- 1 Aila'rey.

s. PURMI-DGE.

MEANS FOR PREVENTING REBOUND IN VEHICLES. I APPLIOATION P-ILED DEC. 22, 1905. 988,753, Patented Nov. 2; 1909 so ta sely agiiinst mduoe strong Eric- 02: mnved, as Jade? is ab- 1% by the sg amred evanteu fmm .n of the cir- Which the inner fimgular-mnubhml reg 5 formed iengthwisa {in series ammld swam 32 which the straight 1 i the dog $42hiufi cevoivad in the {fiFQfiY'SiOH in g-hswwaved in H08 opposite-dir edge 2 1 of said moth noivhes of the micchet tegral with ,the mailmmdedi themin or arm with cal 3,1 23), z, swivel joint 27 t0 Ming 5 ivaled M129 to m rests 11pm: the leaf mgledron aluzthrm1gh of the arms of 9111515 said angle-11mm to 511a nut-s 32. 5

in a passage 39 1% on fin: sleeve into the lug a keeper for saidfiog 22 g .Ofili 1% from 23 is msved up; @110 direction, said dog 5 Y hmwd around and the pin 35 in the recess "iimnmed by H HHQd the other way from be V 1:" Y a (111mb; This arrangev A v that 1m antbrebound 00 in positions other than savings, as E01 instance 11 {110i Wn) of having 53116 a 4L and the collar 26 projects to- 105 hide.

scends, carrying with it the bolt 10, the link 28 holds the forward end of the arm 26 at the same height above the leaf spring 2 as before the descent of the vehicle body, but the said carrying downward of the bolt 10 causes the arm 26 to swing on the swivel joint 27 so that the rearward end thereof is relatively lowered from its former position. Said arm is not prevented from thus swinging downward, the beveled edge 24 riding freely over the ratchet notches 19, as hereinbeiore described. As soon as the body 1 begins to rise again with the impulse of the leaf springs 2 that constitutes the objectionable rebound heretofore common, the straight edge 20 of the tooth of the dog 22 bites the ratchet notches, being pressed thereinto b the spring 36 abutting between the

shou ders

37 and 38. This holds the collar 23 from rotation independent of the cylinder 13, and as the upward pull of the vehicle body, carrying with it the hanger 5, disk 6, bolt 10, etc, is irresistible, the dog 22 forces the cylinder 18 to rotate, and by this means (on account of the square opening therethrough and the squared shank of the bolt 10 and the square opening through disk 7 the latter is caused to revolve against the strong frictional resistance of the washer 9 pressed into contact with disk 7, as hereinbefore described. This frictional resistance is very strong, and modifies the rebound so as to relieve same of all objectionable features. On the other hand, this arrangement does not unduly nullify the resilience of the leaf springs. One advantage in this connection is essentially noteworthy-namely, that, while the frictional resistance is ever ready for. action to prevent the rebound, yet it does not act until the rebound begins; while effectually preventing the rebound, it does not retard the downward movement of the body so as to diminish the easy riding qualities of the vehicle.

It will. be obvious that other forms of ratchets than the particular one herein shown and described can be used, and that numerous other changes can be made in such minor details without departing from the nature and spirit of this invention.

Having thus described my said invention, what I claim and desire to secure by Letters-Patent is:

1. In device or the character described, the combination of a fixed friction plate, a

movable friction plate, each being concave on the side adjacent its fellow, and a convex washer interposed between same.

2. In a device of the character described, I

her, a movable one, a cylinder, a bolt pas'sing through said three members and causing said movable member to rotate, and means for actuating said bolt b said cylinder.

4. In a device of the c aracter described, the combination of a fixed friction member, a movable one, a cylinder having a circumferential' row of notches, a bolt passing through said three members and causing said movable member to rotate and means for actuating said bolt by said cylinder, said means riding freely over said notches while the vehicle body is descending but engaging same while it is rising.

5. In a device of the character described,

the combination of a fixed friction plate and a movable one, ratchet means for actuating said movable member, a depressible arm terminating in a collar encirclin said ratchet, an offset from said collar, an a do in said offset, by which said collar is locks to said ratchet, said members being thereby caused to rotate in unison.

6., In a device of the character described, the combination of a fixed friction plate and a movable one, ratchet means for actuating said movable member, a depressible arm terminating in a collar encircling said ratchet, "and means carried b wlicreb said collar grips said ratchet as said collar moves in one direction, but said means riding over said ratchet as said collar moves in the other direction, said means bein so adjustable as tolock said 'collar to said collar said ratchet while moving in eitheridirectionv l i by applying power to the inclosed partthereo on rlsmg of the vehicle. 7

8. In combination with a. vehicle body and the springs thereof, a member carried by the vehic e body, a friction member coacting with said member, a body which passes through each of said membersand which is so related to said friction member as to rotate therewith, and means related to the springs and inclosing an extension of said body, said extension being equipped with ratchet means to rotate same onrlsing of the vehicle.

9.In a device of. the character described, the combination of a pair of friction mem-. bers, a cylinder, means rotating with one of said friction members, and means for actuating said Jest-mentioned means by said cylinder.

10. In combination with a;vehicle body and the springs thereof, a member carried bythe vehicle body, a friction member (:0- actin' with said first-mentioned member, a ho y related to said, friction member to rotate therewith, and means related to the springs and inclosing an extension of said body to apply power to said body on rising of the vehicle, thereby to rotate the friction member.

11. A device of the character described,

"comprising a tixed friction plate, a movable one, a ratchet-bearing member extending outwardly from said movable plate, on each side and rotating, in unison therewith, a depressible arm. means to lock said arm to said ratchet as said arm moves in one direction but. ridin over sameas, said armmoves in the opposite direction, and a spring engaginn the ratchet-bearing niem er to press said friction plates together.

In testimony whereof I have aflixed my signature in presence of two witnesses.

SAMUEL FURMIDGE; Witnesses ELLIOTT R. GOLDSMITH, GLADYS WALTON.