US1043116A - Magneto-mounting. - Google Patents

Description

Avv. s. LEE. MAGHBTO MOUNTING. AP-PLIOATIOI FILED 10V. 24. 1911.

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@www 'YWMVS 010/' www M @LMO Patented Nov. 5, 1912.

W. S. LEB.

MAGNETO MOUNTING.

APPLICATION FILED Nov.24.1911.

1,043,116. Patented N0v.5,1912.

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WILLIAM S. LEE, OF DETROIT, LIICHIGAN, ASSIGNOR, BY MESNE ASSIGNMENTS', TO BRIGGS-DETROITER COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.v

MAGNETO-MOUNTING,

Specification of Letters Patent.

.Patented Nov. 5. 1912.

To all whom 'it may concern;

13e it known that I,'WILLLAM S. LEE,'a citizen of the United States, and a resident of Detroit, in the county of Wayne and State of Michigan, have invented a new and use'- ful Magneto-Mounting, of which the following isa specification.

This invention relates to means for supporting magnetos, to means for properly connecting the driving mechanism to, the armature shaft of the magneto, and to means for properly adjusting said driving mechanism before it is locked to the shaft.

At present, much time is lost in properly connecting magnetos to lfhe cam-shafts or crank-shafts of explosion engines, because there is no proper system for first positioning the gear connected to the armature shaft of the magneto. lIt is now A necessary to make many adjustments and experiments before the proper position is attained. The present construction is designed to obviate these experiments by furnishing means whereby the position of the armature shaft can be absolutely determined so that the magneto can be secured in proper position withoutany diiliculty.

In the accompanying drawings, Figure 1 is an elevation' of an engine with the armature in position. line 2-2 of Fig. 1. Fig. 3 is an elevation of a magneto with the driving vmechanism and supporting device in vertical section, on a larger scale. Fig.. 4 is a section on the line 4-4 of Fig. 3. Fig. 5 is a rear 'view of the bracket.

Similar reference characters referltolike parts throughout the several views. A

The magneto shown in the drawings may beof any desired construction; I have shown a bed 5, and permanent magnets 6. The armature shaft-7 is formed tapering, with a screw-threaded end 8. A supporting bracket i's formed with a horizontal portion 9 to receive the bed of the magneto, and a disk 10 having holes 11 for the screws 12, by means of which this bracket maybe attached to the gear casing 13. Thiscasing 13 incloses the gear on the crank-shaft 14, and the gear 15 on the cam-shaft, as indicated in Fig. 4. Thev gear 16 on the end of .the armature sha-ft is shown meshing with 'this gear .15 .on the cam-shaft, although 1t may mesh with the gear on .the crank-shaft if desired. The gear casing and the gears Fig. 2 is a section on thedesired manner.

The disk 1o is formed with a hub rzfin Vwhich is an antifriction lining 18, to furnish .a bearing for the sleeve 19. This sleeve is formed with a collar20, and its inner end is tapered to t the portion 7 of the armature shaft. On the outer end of this sleeve 19 1s mounted the gear 16, a key 21 supplying the connection between the gear and sleeve. A long nut 22 engages the thread 8 at its inner end. The disk 10 is formed with a hole 23 and the gear 16 is formed with a hole 24, through which holes a pin 25, shown in dotted lines in Fig. 3, may extend.

When the magneto has been properly assembled, it will be secured to the plate 6 with the sleeve 19 extending into the bearing 17. The workman then places the gear 14 on the sleeve 19 and screws the nut 22 a portion of its distance onto the thread 8, but not suiciently far to lock the sleeve 19 onto the shaft. He then experiments by turning the armature shaft until he determines the exact position vat which `a spark is generated. When this is learned, the armature is stopped at that exact point, and the pin 25 then screwed down hard to lock the sleeve 19to the armature shaft.

When it is desired to mount the magneto4 on any desired multi-cylinder engine, the crank-shaft of the engine is turned so that a predetermined piston is at the explosion end` of its stroke. At this position, the cylinder of this selected piston is ready t'o receive a spark, and the gear 15 on the cam shaft is in proper position to engage the gear 16 when the holes 23 and 24 register. Any magneto may be taken out of stock, a pin 25 inserted through the holes 23 and 24 so as to properly position the gear 14, the pin removed, and then the disk 10 is secured to the casing 13 by means of-the screws 12, care being taken to avoid turning either of the gears 15 or`16. No further adjustment of the magneto is then necessary. The pin 25 may be replaced by any other desired means for insuring the position of the gear 16 being thesame as that selected by the workman when he determined the exact sparking point of the armature. j

I claim.

l. The combination with the gear case and driving gear of an internal combustion engine, of a disk and bracket adapted to be secured thereto, a bearing mounted on said disk, a sleeve revoluble in said bearing and having the bore at one end tapered to tit the tapering end of a magneto shaft, a gear mounted on said sleeve of proper size to mesh with' a gearrconneeted to the engine,

. and a nut extending through said sleeve in engagement With the threaded end of the armature shaft of the magneto, said gear and disk having apertures to receive a tool to position the gear relative to the disk.

2. The combination With an internal combustion engine and a driving gear mounted thereon, of a bracket for supporting a magneto, and comprising a vertical and a horizontal plate, said vertical plate formed with a bearing, a magneto mounted on said horizontal plate and having a shaft extending through the bearing of thevertical plate, said shaft being formed tapering and threaded at its outer end, a sleeve mounted in said bearing and having its bore formed to fit the tapering end of said shaft, means to secure sald sleeve in position, 'a gear secured to the outer end of said sleeve and means to determine the position of said gear relative to said armature shaft.

In testimony whereof I. have signed this specification in the presence of two subscribing Witnesses.

WILLIAM S. LEE. Witnesses:

WILLIAM T. Hnwrr'r, EDWARD N. PAGELSEN.

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