US1398000A - Automatic timing device - Google Patents

Description

W. R. ALLEN AUTOMATIC TIMING DEVICE.

APPucAnon men 020.13, 1920.

1 ggg gg Patented Nov. 22, 1921.

WILLIAM RAYMOND ALLEN, 0F HU'ICHINSON, KANSAS.

AUTOMATIC TIMING- DEVICE.

Application filed December 13, 1920.

To all whom 2'1, may concern:

Be it known that I, \VILLIAM RAYMOND ALLEN, a citizen of the United States, residing at Hutchinson, in the county of Reno and State of Kansas, have invented certain new and useful Improvements in Automatic 'i'iming Devices, of which the following is a specification.

This invention relates to improvements in timers to be used in connection with internal combustion engines and the principal object of the invention is to provide improved mechanism for automatically governing the time or period when a spark shall occur in the ignition system in each cylinder of the engine, thus making it unnecessary for a retard and adxance lever to be used at the drive wheel.

The invention was devised particularly for use in connection with the engine of the Ford automobile but it is obvious that it may be applied to engines of other kinds and types.

A further object of the present invention is to provide improved mechanism which may be substituted for the internal mechanism of the ordinary timer without altering the engine or the engine shaft.

Another object of the invention is to provide simple, inexpensive and durable mechanism which by reason of its simple construction, is not liable to easily get outof order.

With the foregoing objects outlined and with other objects in view which will appear as the description proceeds, the invention consists in the novel features hereinafter described in detail, illustrated in the accompanying drawing and more particularly pointed out in the appended claims.

Referring to the drawing:-

Figure 1 is a vertical transverse sectional view of the improved timer.

Fig. 2 is a longitudinal sectional view taken on line 2-2 of Fig. 1

Fig. 3 is a perspective View of the roller carrying member forming part of the pres ent invention. I

Fig. {1 is a perspective view of the counter Weight lever.

Fig. 5 is a perspective view of the cylinder'which forms the support for my improved mechanism.

Fig. 6 is a perspective view of the disk to which the counter weight lever is pivoted.

Fig. 7 is a side view of the roller.

In the drawing 1 represents an ordinary Specification of Letters Patent.

Patented Nov. 22,1921.

Serial No. 430,361.

timer shaft which in the present instance, is

provided with a cylinder 2 having a notch 3 designed to engage a pin 1 extending from the shaft for fixing the cylinder to said shaft and ,causing the cylinder to rotate with the shaft.

A supporting member such as a disk 5 is fixed to one end of the cylinder by means of a pin 6 which enters a notch 7 in the cylinder and a similar notch 8 in the disk. The disk is provided with an extension t) having an end 10 which extends parallel to the disk and is apertured, as shown at 11.

A counter weight lever 12 having a hub 13 provided with a hole 14, is inserted between the end member 10 and the disk 5, and a pin 15 passes through the aperture 11, the hole 1a and a hole 16 in the disk 5, for securing the lever 12 to the disk. The lever 12 is thickened or enlarged, as shown at 17, to provide a counter weight and the outer end of this counterweight is bifurcated, as shown at 18, and the arms of the bifurcated end a apertured, as shown at 19. It will be noted that the lever 12 and its counter weight is located on one side of the timer shaft and on the opposite side a roller carrying lever 20 is arranged.

The lever 20 has one of its cuds 2l'apertured, as shown at 22, and the cud 21 is inserted between the arms 18 to provide a knuckle joint, a pin23 passing through the apertures 15) and 22 which secures the ends of the levers 12 and 20 together. The knuckle joint prevents the lever 20 from moving to a position where its roller 2-1 will diseir gage the track way 25 of the casing 26. The. lever 20 is cut away as shown at 27 to pro vide a seat for the roller 24 and-a pin 2? passes through apertures in the lever 20 and the roller 24 for securing said roller to the lever 20.

The free ends of said levers 12 and 21) are provided with parallel apertured lXtl0Il)lties 29 and 30 between which is located a coiled spring 31, adjusting means 32 being provided for varying the tension .of the spring.

The casing 26 is of ordinary construction having an arm 33 for adjusting the position of the contact segments 34 which are counter I nary timer in substitution parts are of strong and durable construcorder.

struction and operation of our mechanism will beap'parent to those skilled in the art,

but we may state that the improved mechanism which includes the parts 2, 5, 12, 20 and 31 may be quickly inserted in the ordifor the internal mechanism now in general use;

Attention is called'to the following advantages of the invention. Its working tion throughout and as these parts are few in number, they are not likely-to get out of There are no additional parts to be applied to a Ford engine in order to attach the improved mechanismQ There is no need for a spark lever with the present invention.

hen applying the mechanism to the timershaft of a Ford automobile, it is keyed onto the shaft at exactly the same position as the ordinary internal mechanism ofthe Ford timer, which causes it to start with the shaft at the most retarded position.

Hence, after placing the mechanism in position, the spark lever at the steering wheel is placed in the most retarded position and is left there, and after this the improved mechanism will operate at the desired intervals to furnish sparks at all speeds.

In the drawing and description the preferred embodiment of the invention is disclosed but it is obvious that numerous changes and modifications may be made in the construction illustrated without depart:- ing from the spirit of the invention. as set forth in the claims. Wt hatis claimed and desired to be secured by Letters Patent is 1. A timer including a shaft, a supporting the supporting pivotally connected member carried thereby, a counterweighted lever pivotally mounted on said supporting member and movable in a. plane perpendicularly to the axis of said shaft, a roller support operatively connected with and actuated in one direction by said counterweight lever, a contact roller carried by the roller support, and means for moving the roller support in a direction opposite to that in .which' it is moved bysaid counterweight lever.

2. A timer of the kind defined by claim 1 cylinder mounted a disk to which on the shaft and carrying the counterweighted lever 3. A timer of the in which the counterweighted lever is pivotally connected at an intermediate portion to member.

4. A, timer of the kind defined by claim 1 in which the roller support includes alever provided at, one end with means for pivotally" connecting the same to the counterweighted lever, and provided 'atits opposite end with the means for moving *the roller in which the supporting member includes a support in a direction opposite to that, in

tvhich it is moved by said counterweighted ever.

5. A; timer of the kind defined by 'claim 1 in which the roller support includes a curved lever and in which the contact rollerfis rotatably mounted in an-intermediate-portion of the last named lever.

6. A timer of the kind defined by claim 1 in which 'the means for moving the roller support in a direction opposite to that in y said counterwelghted which it is moved lever, includes a spring.

7. A timer including a shaft, a disk lever pivotally mounted on said disk and movable in a plane perpendicularly to the axis of said shaft, a roller support lever to one en.,d, of said counterweighted lever and carrgirng a contact roller at an intermediate portion of the same, and a spring between the roller support lever and the counter-weighted lever.

In testimony whereof I atfix my signature.

VILLIAM RAYMOND ALLEN.

,mounted on said shaft, a counterweighted

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