US1854360A - Timer - Google Patents

Description

A. J. WOODFORD April 19 1932.

TIMER Filed Dec. '7, 1928 gnveflto'c 14mm? J. WooDFoN.

Patented Apr. 19, 1932 STATES PATENT GFFECE ARTHUR J. WOODFORD, F NAMPA, IDAHO TIMER Application filed December 7, 1928. Serial No. 324,374.

This invention contemplates the construc- J are mounted. Adjustable contact members tion of a timer or distributor in which a K are carried by the forward extremity of Series of adjustable contact elements are careach contact lever and are in the nature of ried on pivoted arms, the latter being each screw studs, the threaded ends of which exprovided with anti-friction rollers engaging tend into the levers and are locked in adjusted 5 cams fixed to a rotating shaft. position by the lock nut is. Rearward of the The construction and arrangement of the pivot pin h studs are formed for receiving parts forming this invention and the mountone of the extremities of the coil spring L, ing therefor, is such as to produce, as nearly the opposite ends of which engage the studs perfect as possible, a primary connection M mounted on the base plate G. The central with the engine at the time of contact. The per ion of each contact lever is cut away as at contact elements themselves are individually N to receive the anti-friction rollers O, the adjustable which permits the elimination of latter contacting with the cams f on the cam engine vibration and the increased dev-elopshaft F. The fixed contacts P are insulated 15 ment of power by a more accurate timing of from the base plate G by means of the fiber explosions. plates Q. These fixed contacts P are in the Lubrication is provided for the various nature of bolts and are held in fixed position bearings by accumulating the lubricant in by the nuts 39 which engage the outer insua wick in the cam shaft and distributing lat-ing plate and bind the head of the Contact therefrom. member against the inner insulating plate.

Other features, such as the bracing of the Th cam haft F b l th ti bly assembly, the mounting of the fixed contact and the gears E and C and the extremity of points and the arrangement of the springs atthe cam shaft D are all encased in the casing tribute to the success of the device. B, through which lubricant is caused to travel 25 Reference will be had to the accompanying and accumulate in the wick S in the cam shaft drawings forming a part of this specifica- F which latter is hollow for a portion of its tion and wherein like characters of reference length to accommodate the wicking. designate corresponding parts throughout A cap T fits over the upper extremity of the the several views, in which: cam shaft F and the bracket t retains the cap 30 Fig. 1 is a side elevation of the device with in position and also secures the assembly at a fragmentary showing of a gas engine; its upper end to the engine frame. Another Fig. 2 is an end elevation; and bracket V maybe provided to retain the parts Fig; 3 is a transverse section on line 33 of in their respective positions and in the pres- Fi 1. cut disclosure this bracket V is bolted at one 35 g conventional gas engine is indicated by end to the timer casing. The opposite end reference character A having a cam shaft will be fixed to any available portion of the B to whichis fixed the bevel gear C which engine frame. meshes with the gear E on the lower extrem- The disclosure in the present application is .ity of the cam shaft F. A plurality of cams f obviously for a four cylinder motor, or a are fixed to the cam shaft F near the upper eX- motor with four points of ignition. The same tremity thereof and actuate the Contact inventive idea could be utilized in motors of levers more clearly hereinafter described. other capacity by increasing the number of The assembly forming the present timer cams. contacts and contact levers. Except for structure is carried by a supporting bracket the change in the number of these elements including a base pla e G formed with spaced the balance of the structure will be substan alined upper and lower bearings g and g tially identical with that disclosed. The two respectively, through which the cam shaft F most important features of the present strucextends. Integral brackets H extend out ture consists in the provision of means for a wardly from the bearings g. g and support quick testing of the ignition system, an adthe pivot pin it upon which the contact levers justment of the contact points whereby the full power of the motor may be developed, and the system of lubrication which includes the accumulation of the oil in a wick reservoir and a dispensing from this wick reservoir to the various bearing surfaces.

What I claim as new and desire to secure by Letters Patent of the United States is:

1. A timer for internal combustion engines, comprising a substantially rectangular plate member, supporting means for said plate, a pair of spaced alined bearings formed on said plate intermediate the side edges of the latter, a plurality of fixed contacts carried by the plate adjacent one. side edge thereof, a

pair of spaced alined brackets formed on said plate adjacent its opposite side edge and eX- tending outwardly at substantially right angles thereto, a plurality of contacts pivotally supported between said brackets, means for normally urging the last named contacts into engagement with the fixed contacts, a rotatable shaft received in said bearings, a plurality of spaced cams carried by said shaft arranged to intermittently separate said contacts, and'means for actuating said shaft.

2. A timer for internal combustion engines, comprising a vertically disposed substantially rectangular plate member, supporting means for said plate, a bearing member formed adjacent the upper and lower portions of the plate and intermediate the side edges of the latter, a plurality of spaced alined fixed contacts carried by the plate ad jacent one side edge thereof, a pair of spaced alined brackets formed on said plate adjacent the opposite side edge of the latter and eX- tending outwardly at substantially right angles thereto, a series of spaced insulated contacts pivotally supported between said brackets, spring means carried by and extending outwardly at substantially right angles to said plate for normally urging the last named contacts into engagement with the fixed contacts, a hollow shaft rotatably supported in said bearings, spaced cams on said shaft arranged to intermittently separate said contacts, means within said shaft for lubricating the moving parts, and means for actuating the shaft.

In testimony whereof I affix my signature.

ARTHUR J. WOODFORD.

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