US1480696A - Magneto contact - Google Patents

Description

' Jan. 1 5, 1924.

' 1,480,696 P.' A. SCHAEFER l.

MAGNET@ CONTACT Filed March IL.v 192g f Y(ML Raue/laffe@ Patented Jan. 15, 1924.

UNITED ASTATES PETER A. SCHAEFER, OF GREENSBURG, PENNSYLVANIA.

MAGNETO CONTACT.

Application led March 1, 1922.

To LZZ whom it may concern.'

Be it known that I, PETER A. SCHAEFER, citizen of the United States, residing at Greensburg, in the county of llVestmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Magneto Contacts, of which the following is a specification.

This invention relates to an improved magneto contact for Ford motor cars and seeks, as one of its principal objects, to provide a contact which may be easily and quickly removed or replaced so that the contact may, at any time, be conveniently cleaned.

The invention has as a further object to provide a contact embodying a gasket for )Lneventing the loss of oil through the plug opening in the transmission cover of the vehicle and wherein the gasket will be yieldably fed to a position sealing the opening.

And the invention has as a still further object to provide a contact which may be readily substituted for the usual magneto contact of a Ford car without the necessity for any structural change in the car.

Other and incidental objects will appear hereinafter.

In the drawing:

Figure 1 is a fragmentary sectional view showing my improved contact in connection with the transmission cover and coil ring of a Ford car, the Contact being shown in elevation.

Figure 2 is an enlarged vertical sectional view through the contact.

Figure S is a transverse sectional view on the line 3-3 of Figure 2, looking in the direction of the arrows, and

Figure l is a fragmentary sectional view on the line 4% of Figure 3, looking in the direction of the arrows.

As is well known, the magneto of a Ford car as now constructed is associated with the engine iywheel. A stationary ring of coils is employed and mounted upon the iiywheel4 of the engine to revolve within said ring is a series of magnets. Current is thus generated in the coils and screwed upon the transmission cover of the engine is a magneto contact to coact with a terminal upon the coil ring. The magneto contact very often becomes fouled while pieces of lint Serial No. 540,262.

and other foreign matter collect between the contact and the terminal of the coil ring. It accordingly becomes necessary to remove the magneto contact from time to time and since, as previously noted, the contact is screwed to the transmission cover, removal of the contact is tedious and invconvenient. The present invention, therefore, seeks to provide a contacteliminating these disadvantagcous features. In the drawing, I have, for convenience, shown my improved contact in connection with a conventional transmission cover 1() of a Ford car. The usual stationary ring of coils of the magneto of the ear is indicated at 11 and between a pair of the coils of said ring is mounted a terminal 12. Formed through the cover 10 above said terminal is an opening 13 to accommodate the customary magneto contact supplanted by the present invention.

In carrying the invention into effect, I employ a cylindrical bushing 14 which is formed to snugly fit through the opening 13 of the transmission cover and is provided at its upper end with a iange 15 overhanging the cover for supporting the bushing in position. Surrounding said flange is lan appropriate gasket 16 and resting upon said gasket is a base ring 17. This ring may be of aluminum or other approved material and is formed to register with the opening 13 in the transmission cover 10 overlying the flange 15 of said bushing. The ring is stepped and. provided with a plurality of bosses 18 through which are formed suit able openings to accomn'iodate screws 19 threaded into the usual openings in the cover for iirmly connecting the ring therewith, the ring serving to clamp the bushing 111 therebeneath. Formed in the ring, as best shown in Figures 3 and 11, is a plurality of spaced arcuate slots 2O opening through the upper face of the ring, while at their inner ends, these slots are provided with pockets 21. Freely fitting through the ring is a preferably aluminum shell 22, reduced at` its lower end portion to loosely tit in the bushing 14, and provided with a beveled lower end edge 23. Projecting radially from the shell at suitably spaced points thereabout are lugs 24 engaged in the slots 20 for securing the shell upon the base ring and snugly, but slidably, fitting through therethrough, a tubular insulator slidably upon the shell for compressing the gasket fitting through the she-l1 and provided at between said shoulder and the shell and feedits lower end with a shoulder, a gasket ining the gasket to the wall of said opening l0 tei-posed between said shell and the shoulder, forming a joint therewith yieldably closed 5 and an electrical conductor extending within by said spring.

the. insulator and including a spring tend- In testimon whereof I alix 1n signature. :ug when vcompressed to shift the insulator PETE A. SCHAEFElg. [Ls]

Images