US1507065A - Commutator or rotary ignition-current distributor for internalcombustion engines - Google Patents

Description

Sept. 2 1924. 1,507,065

J. JUDGE COMMUTATOR OR ROTARY IGNITION CURRENT DISTRIBUTOR FOR INTERNAL COMBUSTION ENGINES Filed Aug. 22, 1922 II (Tun Patented Sept. 2, 1924.

UNITED STATES JOHN JUDGE, 0F MANCHESTER, ENGLAND.

COMMUTATOR OR ROTARY IGNITION-CURRENT DISTRIBUTOR FOR INTERNAL- COMBUSTION ENGINES.

Application filed August 22, 1922. Serial No. 583,583.

To all whom it may cone-em: 7

Be it known that JOHN JU GE, a suo ect of the King of Great Britain and Ireland, residing at Manchester, England, has invented new and useful Improvements in Commutators or Rotary Ignition-Current Distributors for Internal-Combustion Engines of which the following is a specification.

This invention relates to commutators or rotary ignition current distributors for internal combustion engines and has for its object to provide an improved form of distributor primarily designed for Ford cars.

According to the invention the distributor casing is formed of suitable insulating material such as stabalite recessed on the inside to receive the distributor in the form of a disc of insulating material adapted to be keyed to the engine cam-shaft. The outer face of the disc is provided with an all around metal track formed in segments, one of which is in electrical connection with the cam-shaft while the others constitute a metal track for a series of carbon brushes slidably mounted in the adjacent face of the recessed casing. Said brushes are mounted in metal tubes let into the casing and connected to the respective terminals, and springs are provided normally forcing the brushes into contact with the metal track on the rotor. The casing is provided with a metal centre on the exterior adapted to be engaged by a spring pressed arm to keep the same in position and also with means for connection to the control lever for timing.

The invention will be more particularly described by the aid of the accompanying drawings, in which 2-- Fig. 1 is a sectional elevation of the improved distributor shown applied to the cam or timing shaft of the engine.

Fig. 2 is a front elevation and Fig. 3 a rear elevation of the distributor casing detached.

Fig. 4 is a sectional view of the distributor casing on the line 4, 4, and

Fig. 5 is a face view of the rotor detached.

Referring to the drawings the distributor casing a is formed of stabalite with a recess to receive the rotor or distributor disc 6 also formed of stabalite. The latter is secured to a metal hub c to fit the cam shaft of and a metal peg 6 serves to place a segment 7 of a metal ring f in electrical connection with the hub c and shaft d. The metal ring f is divided into four segments f, f f and f of which the segment f is the current conveyor while the other segments constitute a continuous metal track for the carbon brushes g, hereinafter referred to, all the segments being insulated from each other. The segments F, f are interposed between the segments f and f so that the gap between the segments may be sufficiently narrow to allow the beforementioned brushes to always rest upon the metal ring without completing the circuit through any of the brushes except the one contacting with the segment 7.

The casing a is provided with a series of metal fittings 72 moulded therein, each fitting being formed with a tubular fitting i at one end lying transversely of. the casing and extending to the inner face of the easing. The four fittings h are arranged with their tubular ends a lying in a circle corresponding to the metal ring 7 on the rotor and set at points 90 degrees from each. The other ends of the fittings h are continued to the periphery of the casing at the top side as seen in Figures 2 and 3 where they are bored and tapped to receive metal terminal screws. The latter are preferably numbered and formed with heads of stabalite or the like of different colors for identification purposes.

Located in the tubular sockets 2 are a series of carbon brushes 9 normally forced outwards into contact with the metal race 7' by means of the springs 7'.

The inner edge of the casing a is provided with a metal ring 72 secured thereto during the course of manufacture and with a metal centre Z at the apex of the conical back of the casing to receive the end of the spring securing arm, whilst an extension or lever m formed in one with the casing is provided with a metal brush to which is attached the timing control link or lever.

In practice the rotary distributor disc I) is fixed to the cam-shaft of a Ford engine and the distributor casing a placed thereon with the carbon brushes, resting upon the segmental track f. Ignition leads are attached to the correct terminals and said terminals are screwed into the respective fit- 15 tofagree With'th'e different colors offinsulata eringottlm leads. Q'rthenaineoi dis on -theterminal along with the 5 unugstbmi that instead of carle inalterial may be ;provided, B thseme'ans yery eflicient distributors ac; Q i1 and have a long life.

we f' a 1 QQIIirniitators or.gro tary ignition ,cur- V rent-distrihutors comprising an outer casing formed; of insulating ,material recessed to IeCGlYQ a rotary CllStIlblltOT disc, a ser es of S,Vbr1'1slies -of copper or other,

are; ro'vi'de'd Which are sinooth'frunnin'g in brushes .slidably mounted in said recess, a rotary fdistributfor disc, a metal ring formed in segments secured to said disc and With one segment electrically connected to the source .01": electrical current, said'ring constituting a continuous metal track for the brushes on -the casing, "substantially asidescribed.

2. (lom mutators or rotary ignition current distributors comprising an outer; casing formed of insulating materialrecessed;

to receive a rotary disti'iIOu'tOrtlisc, a rotary distributor disc, ainetal ring foriiiedin segnients secured tofone face of tlle dlc, one segment being electrically connected to the source of electrical ener y and all the segments being insulated from each other, "a

series of tubula jfitti igs in vthe casing and a a series of Brushes slidably mounted in said tubular fittings so as to be capable of movement perpendicular to the face of the disc in contact With the metal ring c'omple mental terminals in electrical communication ith thetubular fittings, substantially" as describe 'd. V a I V V In testimony whereof Ihave' signed thy name to this specification. V V

, m GE,

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