US1221607A - Mount for magneto-distributers. - Google Patents

Description

E. J. J. SALMSON.

MOUNT FOR MAGNETO DISTRIBUTERS.

APPLICATION FILED MAR. 27. me.

L. Patnted Apr. 3, 1917.

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IEMXIJE JEAN JFULES SALKZSGN, 6F BILLANCOURT, FRANCE, ASSIG'NOR TO SUGKETE DEE? MGTEURS SALMSGIJ (SYSTEMZJ CANTQIiT-UNNE), 01" BILLANCOUZELT,'FEA'NCE.

MGUKT Fills MAGNETO-DISTRIBUTEBS.

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Specification off Letters Patent.

Patented Apr. 191'? To all whom it may, concern;

Be it known that l, EMILE Jnaudnnns SALMSON, citizen of the Republic of France, residing at 9 Avenue des Moulineaux, Billancourt, Seine, in the Republic of France, have invented new and useful improvements in Mounts for Magneto-Distributers, of

which the followingis a specification.

lhis invention has for its object to provide an improved mount for the distributers of niagnetos, more particularly"ignition magnetos of internal combustion engines.

The essential features oi: the improved. mount are such that it allows of very easy adjustment of the whole distributor, and of its immediate removal and replacement for the purpose of inspecting; or repairing the magneto, prevernbingthe short-circuits which so frequently occur and which are due to the settlement or" dust arising r *ear and tear of the contacts on. the dustributer body and the rotary carbon brush holder. Furthcr, the perfect insulation. of the armature relatively to the sai y discharge device, pro vents the occurrence of sparking in the neighborhood of the armature and the deterioration. of the latter which is otherwise always the f This invention will now be more particularly described with reference to the accomdanying drawings which illustrate one constructional e ample oi the invention.

In these drawingsze Figure l is a longitudinal section of the gen eral arrangement of the improved mount, and

Fig. 2 is a cross section on the line c--a of Fig. l.

As shown, This a block oi'eboniie generally cylindrical in shape, constituting a rotary carbon brush holder. it is pierced at its center with a blind hole in which is situated a contact terminal 2 for the secondary circult, which is in contact with a terminal carried by the body of the distributor. The distributor is shown in dot and dash lines which are likewise employed to indicate the framing of the magneto and the ball bearings by means of which the Whole structure revolves on the framing. The contact terminal 2 is connected to the revolving currentdistributing brush 3 which is constituted by a screw-threaded nickel stein fitted in a metal part 4:. This metal part i has an. ex

tension in the form of a screw-threaded stem which is screwed into the contact terminal 2 for the purpose of holding the latter in place, and of establishing the electrical con nection with the brush. The flat end of the stem 3-is suitably fluted and it is adapted to revolve at a short distance from the contact pieces of thedistributer body.

The ebonite block 1 is fitted into a supporting socket 5 part of which is constituted by a circular cup-shaped member 6 to which the block is'fixed by means small screws 7.

The other part of the socket 5 consists of a cylindrical axle-shaped member 8 serving for the purpose of centering the socket in the shaft 9 which is driven by means of a toothed wheel 10 from the main shaft of the magneto. The socket member 8 isheld in place on the shalt 9 by nieansoit a steel rod 11, one end of which is screwed and pinned in the socket nien'iber 8 and the other end of which carries acoiled spring 12 held in place by a suitably shaped washer 13 and a pin 14. 'ihe socket is driven by the shaft 9 through the medium of a flat key 15 extending through both parts.

A collar 16 mounted on the shaft 9 serves by variation of its thickness, for the purpose of adjustment 0;? the parts at the time of erection of the apparatus; it carries a pointby means or sparks between the pointed arm 17 and the brush. The space between the two parts is suitably adjusted at the time of erection. This arrangement prevents the occurrence of sparking in the interrupter of the winding as would otherwise be the case, and it thus prevents any excess voltage from damaging the apparatus in any way.

Owing to the provision of the spring 12, the entire apparatus has a certain amount of elasticity, so that while assuring a perfoot contact of the central terminal-upon which a spring carbon brush carried by the distributor body is constantly pressing it prevents the comparatively frequent breakage-of the latter which would otherwise occur. Further, since the rotary carbon brush holder is accurately centered, no transverse displacement thereof can occur, and since the carbon brush supplying the secondary holder, is the habitual cause of short-circuiting.

- The simplicity of the apparatus allows also an easy adjustment, and very quick removal and replacement of' all the parts.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A mount for magneto distributers comprising a revolving brush holder, a supply contact terminal for the secondary current provided in said brush holder, a driving shaft, a socket in which is centered the brush holder and which in turnis centered 1n 'the driving shaft against which it 1s pressed elastically, a key locking the socket and driving shaft together, and a collar arranged-between the framing and the socket, substantially as described and for the purpose set forth.

2. A mount for magneto distributers com prising revolving brush holder, a supply contact. terminal for the secondary current provided in said brush holder, a driving shaft, a socket in which is centered the brush holder and which in turn is centered in, the driving shaft, said socket having a circular segment cut away opposite the brush, a key locking the socket and driving shaft together, and a collar arranged between the framing and the socket and provided with a pointed arm situated opposite the brush, substantially as described and for the purpose set forth, 1

3. A mount for magneto distributers comprising a revolving brush holder pierced at its center with a blind hole, a contact terminal for the secondary current arranged in said blind hole, a brush formed of a nickel stem flutedv at its fiat end and screwed into the contact terminal for the purpose of holding the latter in place, said brush being mounted so as to revolve at a short distance from the contact pieces of the distributer' body; ,a driving shaft, a socket in which is centered the brush holder and which in turn is centered in the driving shaft, said socket having a circular segment cut away opposite the brush, a key locking the socket and driving shaft together, and a collar arranged between the training and the socket and provided with a pointed arm situated opposite the brush, substantially as described and for the purpose set forth;

4. A mount for magneto distributors comprising a revolving brush holder, a supply contact terminal for the secondary current provided in said brush holderfa driving shaft, a socket formed of a cup shaped member with a cylindrical central extension inserted into the driving shaft, said socket having a circular segment cut away opposite the brush, a key locking the socket and driving shaft together, a collar arranged between the training and the socket and provided with a pointed arm situated opposite the brush, a rod pinned at one of its ends in the central extension of the socket, a washer pinned at the other end of said rod, and a Coiled spring bearing against said washer and against the driving shaft, substantially as described and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EMILE JEAN JULES SALMSON,

Vl itnesses ANToINn LAVOIN, Cnas. I. Pnnssmr;

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