US920916A - Control mechanism. - Google Patents

Description

H. E. 00mm. comn'oz. MECHANISM. 1 APPLICATION FILED APB. 13, 190B.

2 SHEETS-SHEET 1.

llmenlar Patented Mayll, 1909';

H. E. COPFIN.

CONTROL MECHANISM. APPLIOATION rnnnwrn. 13,1900.

Patented May 11, 1909.

2 SHBETS-SHEET 2.-

HOWARD E. COFFIN, oF' DETROITLMICHIGAN.

CONTROL MECHANISM.

Specification of Letters Patent.

Patented May 1 1, 1909.

Application filed April 13, 1908. Serial No. 426,757.

To all whom it may concern: v

Be it known that I, HOWARD E. COFFIN, a c tizen of the United States of; America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certainnew and useful Improvements in Control Mechanism, of which the following is a specification, reference being had therein to the acanying drawings.

comlp T e nvention relates to control mechanism for motor vehicles and more particularly to the means for controlling the main clutch which couples the motor to the drive shaft.

The invention consists in the novel constructlonas hereinafter set forth.

In the drawings-Figure 1 is a side elevation of the control mechanism; Fig. 2 isa I ,plan View thereof.

' and having secured thereto the de .the adjustable screw A is the motor vehicle frame. B is a rock shaft extending transversely of said frame ending rock arm C which operates the s iiftable member D of the main clutch E.

F is apedal lever mounted upon the rock shaft B and extending upward through an aperture in the foot hoard G of the vehicle body in convenient position for operation.

shaft mounted upon the frame A parallel to andin rear of the shaft B.

-I is a hand controlled lever secured to the shaftH. H

J is a depending rock arm on the shaft H and K isa rod or slide longitudinally adjustably secured in bearings L upon the frame A; This slide K has a forked upward extension K for engaging a pin upon the rock arm J whereby the movement of said arm is communicated to the slide. The opposite end of the slide K is fashioned to form an incline or cam K.

M is a rock Shea axiall alined with the rock shaft B and both of t ese shafts are t u' bular and mounted upon an inner rock shaft N.

O is a rock arm on the shaft M which extends adjacent to the slide K and has an antifriction roll P which lies in the path of the incline or cam K on saidslide.

Q is a rock arm on the shaft M located adjacent to the pedal F and having at its inner end a threaded bearing in which is scoured R, and this screw bears against the pedal F.

The construction above described is one in which the clutch E may be controlled alternatively by the pedal F and the hand lever I, and the arrangement is such that the operation of the hand lever will also operate the pedal lever, but the operation of the pedal lever is independent of the hand lover and will not disturb the adjustment of the latter. This independent movement of the pedal lever is permitted by reason of the fact that the rock arm Q is free to move with the rock shaft M, arm Q and pedal lever F, and is not positively coupled with the rod or slide K, but is free to move independently thereof whenever thepedal lover F is directly actuated. On the other hand the movement of the slide under the actuation of the lover I will always positively actuate the rock arm Q and through the medium of the rock shaft M and rock arm Q they impart movement to the pedal.

The continued use of the clutch E will rc sult in wearing of the friction surface which necessitates a slightly greater movcmcnt of the shiftable member D to effect the locking ofthe clutch. This would change the position to which the lover I must be adjusted in operating the clutch, and .to avoid such a result the screw R may be ad usted to comlever,

- .iensate for the wear, Thus y suitably adjusting this screw the throw of the lover I in operating the clutch may be maintaincd always the same What I claim as my invention is: 1. The combination with mechanism for controlling a clutch, of a hand-controlled lever for operating said mechanism, a pedal lever adapted to operate said mechanism while connected to be operated upon the movement of said hand-oonr,rollcd lover, and means of adjustment intermediate said hand-controlled lover and said clutch operating I'nechanism for com 'iensating for wear in the clutch and maintaining the throw of said lever'the same.

2. A control mechanism for a clutch comprising a pedal lever, a hand controlled lover, a slide actuated by said hand controlled a cam on said slide, a rock arm actuated bj, said cam, and a member actuated by saidrock arm having a push bearing on sai pedal lever.

Y 3. A control mechanism comprising clutch operating mechanism, a pedal lever for actuating said mechanism, a hand controlled lever fornnng a second means for actuating lUll ill)

- purpose described.

said mechanism, and means of adjustment intermediate said hand lever and said clutch operating mechanism for compensating for 5. A control mechanism for a'olu tch comprising a pedal lever, a hand-controlled lever, a slide actuated longitudinally by said hand- -controlled lever, a cam on said slide, a rock arm actuated by said cam, a member actuated by said rock arm having a'push bearing on said pedal lever, and means of' adjustment between said member and said pedal lever:

6. A control'nieehanism for a clutch, com prising a rock shaft, a depending rock arm thereon, a pedal lever for operating sair l rock arm, a second rook arm on said rock s1aft,.a

member connecting, said second rock arm with said pedal lever, a second rock'shait, a

hand-controlled lever 'thereon, a rock arm also on said'rock shaft, a slide actuated longitudinally by said rook arm, anda cam on. said slide ior operatlngthe second "rock arm on said first reek shaft.

In testimony whereof I afilx my signature n presence of two witnesses.

HOWARD E. (,OFFIN.

, Witnesses:

NELLIE KINSIQLLA, JAMES P. BARRY.

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