US1552783A - Timer-cable guard - Google Patents

Description

Sept 8, 1925 1,552,783 J. D. WEBB v TIMER CABLE GUARD Filed Aug. 26, 1920 Patented Sept. 8, 1925.

JOHN D. WEBB,- OF KANSAS CITY, KANSAS.

TIMER-CABLE GUARD.

Application filed August 26, 1920.

T 0 all whom it may concern:

Be it known that I, JOHN D. WEBB, a citizen of the United States, and resident of Kansas City, county of Wy'andotte, State of Kansas,'have invented a certain'new and useful Improvement in Timer-Cable'Guards, of wliichthe following is a complete specification.

This invention relates to timer cable guards, and has for its object more especially, to establish a connection of the timer cable wires (with the timer, which shall be subject topractica-lly no breakage or wear through vibration or contacts with other objects, and from the possibilityof one wire coming in contact withanother.

In-some motor cars, the timer wirecable is subject to abrasion by being pinched by the hood if the latter is carelessly handled, and it is also free to vibrate violently under the operation of the engine, and subject to deterioration by being saturated with oil, due to its exposed position under the hood of the engine.

More specifically stated, my object is to minimize vibration of the cable as a whole, and bind certain parts of the wires of the cable together, but insulated from each other by an insulating compound impervious to air and liquid, the compound being held on and around the wires by a metal housing. Another object is to provide such Wires with renewable cable ends for connecting the wires respectively with the rotatable part of the timer, that is, the part which is rotatably adjustable from the spark lever of the car. Another object is to provide means for holding the insulated cable in operative relation to the rotatably adjustable part of the housing and thereby relieve the cable ends of the duty of support ing the cable in operative position.

With the objects mentioned in view, the invention consists in certain novel and useful features of construction, and combination of parts as hereinafter described and claimed; and in order that it may be fully understood, reference is to be had to the accompanying drawing, in which,

Figure 1 is a detail perspective View of a timer cable equipped with a guard embodying the invention.

Figure 2 is an enlarged vertical section taken through the guard, and showing the Serial 'No. 406,062.

connection of the timer wires with the timer of a motor car.

Figure 3 is a view chiefly in plan, and partly in section, on the line III-1110f Figure 2.

In the said drawing, '1 indicates the rotatably adjustable part of a timer of any suitable or preferred type, provided with the set of binding posts 2, and with a forwardly-projecting conical portion 3 having a cavity 4 at its apex, and connected pivotallyto part 1 to rotatably adjust the same for the purpose of advancing or retarding the spark, is the usual rod 5 for actuation by the spark lever, not shown.

The timer wire cable 6 is of the common type except that the portion of the "wires which lead inwardly from one side of the hood toward the timer, are left exposed and are threaded through a tubular metal guard, said ends of the wires being numbered 7 and the tubular guard 8. The said guard is provided with a head 9 open at one side and provided peripherally with a set of binding posts corresponding in number to the binding posts 2, the binding posts 10 being insulated from the said metal guard as shown clearly by Figure 2. One side of the head 9 is left open, as explained, and as shown clearly by Figure 3, to enable the front end of said wires to be attached to the said binding posts 10 respectively, and then the entire guard is charged with a compound which permanently spaces the wires 7 apart and from contact with the guard. This compound is of insulating material of any character which will harden and thus constitute a permanent part of the device, it being of course, essential that this compound shall be impervious to moisture and thus obviate any possibility of a short circuit occuring between the wires.

To support the guard in operative condition in fixed relation to the rotatable part 1 of the timer, a U-shaped clip 12 is riveted to the closed side of the head 9 and terminates in a protuberance 12 fitting snugly in the cavity 4 of the conical portion of the timer, the arrangement being such that the rotation of said portion 1 of the timer shall have no tendency to swing or move the guard, and the latter is held firmly in position described by means of a suitable spring 13 secured as at 14: to a part of the engine and terminating in a protuberance 15 which presses into the hollow side of the protuberance 12 and thus holds the same reliably in the cavity 4. If the lamp wires constitute a part of the cable 6, it is preferable that they shall branch from the cable at the rear end of the guard 8 as indicated by the wire 16.

It will be apparent that a cable provided with a guard of the type described will last indefinitely, as that portion which extends inwardly is thoroughly protected from injury by physical contact, from any possibility of a short circuit occurring and from deterioration due to becoming impregnated or soaked with oil or grease. The binding posts 2 and 10 are connected together by short wires 17 in which there is sufiieient slack to accommodate the turning or oscillating movement of the part 1, which in a four-cylinder engine does not exceed a quarter of a revolution and is proportionately less in a timer adapted for an engine hav ing six cylinders or more.

From the above description, it will be apparent that I have produced a timer cable guard which embodies the features of advantage set forth as desirable in the statement of the objects of the invention and which is susceptible of minor changes without departing from the principle of construction involved or sacrificing any of the advantages of the appended claim.

I claim:

The combination of a rotatably-adjustable part of a timer, having a recess in the line of the axis of said part, a spring for holdin said part in position, a tube having an open head, a set of binding posts carried by said part and a corresponding set of binding posts carried by said open head and flexibly connected electrically with the firstnamed set of binding posts respectively, a timer wire cable, extending to the said tube and having its wires extending through said tube in separated relation and attached to the binding posts carried by said tube, a filling of insulating material for said tube and its head, inclosing said wires therein and holding them separate from each other and said tube; said filling being impervious to liquid, and means secured to the tube and pressed against the rotatably-adjustable part by said spring and bearing a pivotal relation to said part.

In witness whereof I hereto attach my signature.

JOHN D. WEBB.

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