Abstract The disclosure relates to a speed control device for engines and particularly automotive engines so that the throttle or speed control member on the engine may be set to operate the engine and the vehicle at any one of several desired speeds. The device includes a reciprocating member adapted to reciprocate in a rectilinear path in opposite directions and adapted to be coupled to an engine speed control member such as the carburetor throttle of the like and the reciprocable member is coupled to a means for transferring rectilinear motion to rotary motion and this means carries an arcuate row of buttress teeth adapted to be engaged by a pivotal latch pawl which is readily disengagable from the teeth by means of a fluid operated device such as a hydraulic cylinder operable by hydraulic brake fluid so as to automatically release the latch pawl from the buttress teeth when automobile brakes are applied and also a manual control for releasing the latch pawl from the buttress teeth. The manual control being remotely located in an operators compartment of the vehicle whereby the speed control may be deliberately manually deactivated or automatically deactivated by an application of the automobile brakes.
In a vehicle engine speed control device the combination of: a frame adapted to be mounted in juxtaposition relative to an engine having a conventional moveable speed control member such as a carburetor throttle valve; a reciprocable member reciprocably mounted on said frame; guide means in said frame engagable by said reciprocable member; first means coupled to said reciprocable member for translating linear motion to pivotal motion; a pivotal member coupled to and operated by said first means; said pivotal member stationarily pivotally mounted on said frame; said pivotal member having an arcuate portion provided with buttress teeth; a latch pawl stationarily pivoted on said frame; a spring connected to said frame and said latch pawl and urging said latch pawl toward buttress engagement with said teeth for holding said pivotal member against pivotal movement in one direction; second means disposed to couple said reciprocable member to said speed control member whereby movement of said speed control member moves said reciprocable member which actuates said first means and pivots said pivotal member; and non-manual power operated means mounted on said frame and disposed for response to operation of vehicle brake and operation of said latch pawl and adapted to force it in a direction to release it from said buttress teeth.
Claim 2
Dependent Claim
211 words
In a vehicle engine speed control device the combination of: a frame adapted to be mounted in juxtaposition relative to an engine having a conventional moveable speed control member such as a carburetor throttle valve; a reciprocable member reciprocably mounted on said frame; guide means in said frame engagable by said reciprocable member; first means coupled to said reciprocable member for translating linear motion to pivotal motion; a pivotal member coupled to and operated by said first means; said pivotal member stationarily pivotally mounted on said frame; said pivotal member having an arcuate portion provided with buttress teeth; a latch pawl stationarily pivoted on said frame; a spring connected to said frame and said latch pawl and urging said latch pawl toward buttress engagement with said teeth for holding said pivotal member against pivotal movement in one direction; second means disposed to couple said reciprocable member to said speed control member whereby movement of said speed control member moves said reciprocable member which actuates said first means and pivots said pivotal member; and non-manual power operated means mounted on said frame and disposed for response to operation of vehicle brake and operation of said latch pawl and adapted to force it in a direction to release it from said buttress teeth.
Claim 3
Dependent Claim
30 words
The invention as defined in claim 1, wherein: said first means comprising a rectilinear gear rack and a gear pinion meshed therewith said gear pinion secured to said pivotal member.
Claim 4
Dependent Claim
17 words
The invention as defined in claim 1, wherein: said power operated means comprises a fluid actuated member.
Claim 5
Dependent Claim
60 words
The invention as defined in claim 3, wherein: said fluid actuated member comprises a piston; a cylinder in which said piston is reciprocally mounted and responsive to hydraulic brake fluid under pressure and adapted for actuation automatically to release said latch pawl from said buttress teeth of said pivotal member when the brakes of an automotive type vehicle are applied.
Claim 6
Dependent Claim
32 words
The invention as defined in claim 1, wherein: a remote hand operated control means is disposed for movably forcing said pawl latch in a direction to release it from said buttress teeth.
Claim 7
Dependent Claim
95 words
The invention as defined in claim 5, wherein: said hand operated control means comprises a push-pull wire control member a compression sheath for said control member, the sheath mounted on said frame and having an opposite end adapted to be mounted in relation to a stationary structure of a vehicle operators compartment and a knob on the cable for actuating it in a push-pull fashion through the sheath structure and one end of said control cable being coupled to said latch pawl member in position to pivot it out of engagement with said buttress teeth.