US1508060A - Distributor - Google Patents

Description

E. LEE

Sept. 9 1 924.

DISTRIBUTOR Filed Novi. 11, 1922 Patented Sept. 9, 1924.

PATENT OFFICE.

ELMER J. LEE, OF BANGOR, PENNSYLVANIA.

DISTRIBUTOR.

Application filed November 11, 1922. Serial No. 600,416.

To all whom t may concern.'

Beit known that l, Emme. J. Lnn, a citizen of the United States, and a resident of Bangor, in the county of Northampton and State of Pennsylvania, have invented certain new and useful Improvements in- Distributors, of which the following is a specification.

My present invention relates generally to distributors, and more particularly to a distributor including a shell or casing disposed around thc timer shaft and provided with an inner annular shoulder forming a trackway and constituted in part by the liber or other insulating material within the casing or shell and in part by metal cont-act plates which the fiber or other material insulate from one another.

In the ordinary construction the trackway within the shell or casing is traversed by a roller carried by a spring controlled arm which. is pivotally connected to a supporting member in turn connected to the timer shaft, so that in its rolling action upon the trackway, the roller trails the supporting armand is on account of this position and support particularly susceptible t0 vibratory movement toward and away from the surface of the traclrway so that the latter frequently becomes quickly worn in ridges and when so riged obviously precludes smooth rolling Contact of the parts.

Itv is the object of my present invention to provide a rotor capable of quick easy attachment to a timer shaft and of operation within the usual casing or sliellwit-h a uniformly continuing smooth rolling contact and which for this purpose avoids the jointed construction of rotor normally employed and substitutes a roller which is yieldable with respect to its supporting means in a straight line radially with respect to the timer shaft and through the center of its support so that there is a direct instead of an indirect pressure of the roller upon the trackway of the shell which avoids the susceptibility to vibrations to which the ordinary structure is subject.

A further obj ect is the provision of a simple, cheap and durable rotor which may be readily substituted for the ordinary jointed distributor casing or practical application of my improved rotor,

Figure 2 is a detail sectional view taken through my improved rotor in a plane parallel to its plane of movement,

Figure 3 is a sectional view taken at right angles to Figure 2, and

Figure 4- is a detail perspective view of the several parts of my improved rotor in detached relation.

Referring now to these figures I have shown in .Figure 1 a conventional distributor shell generally indicated at 10 and presenting an inner ing a trackway upon .which the Contact roller travels in operation, said shoulder or traclrway being constituted in part by the librous or other insulating material 12 within the shell and in part by the fiat metal distributi n g insulate from one another.

The shell 10 is indicated in its usual position around the timer shaft 14, upon which it is usual to support the rotor of the distributor, carrying the contact roller, by means of a confining nut 15.

In the present instance the contact roller 16 is positioned in engagement with they trackway or shoulder 11 in a radial line with respect to the timer shaft 14 which passes through the center ofthe support of the roller connected to the shaft, and the roller 16 is for this purpose mounted within a rectangular holder 1T having an outer convexly curved edge provided with a surrounding iiange 18, the sides of the holder having op posed apertures 19 to receive a roller bearing pin 20 which passes also through the axial opening 21 of the roller.

The holder 17 of the roller has a sliding tit within the outer portion of the roller support or cage generally indicated at 22, also having conveXly curved outer edges 23, one of which may be provided with an extending tongue 24 adapted to be bent inwardly contacts 13V which the material 12 annular shoulder 11 formof material bent angularly to constitute itsv sides and ends, one of these bent portions having an integral extension at the inner end of the cage, bent to form' flat side shoulders 25 anda curved shaft embracing portion 26 between saidy side shoulders, this extension being preferably provided With a in terminal tongue 27 adapted to be seated in conformable recesses at one side of the cage or vsupport andV flush with the latter. The

yshaft embracing portion- 26 has a slot 28 to receive the usual pin 29 which when in placel extends Within a recess in the timer shaft 141,an'd whichl is held from displacement by a cap 30. This cap 80 wheny in 'place' embraces' one Vend of the sli'aftembrac- 4ing portion 26 of the support or cage, and

in so doing alsocovers .the pin 29, the cap having side Wingsl adaptedftoengage opposite sides of the support or cage 22so that' when in turn engaged by the confining nut 15 upon the tiniershaft projecting through an opening 32 of the cap, the latter Will'be immovably held;

The inner edges of the-support or cage 22v at opposite ends ofthe shaftembrac-ing por# tion 26 have inturned lugs 33 which bear againstv thetimer shaft 11i as shown mostl clearly invFigure 3, and the shoulders 25 formed by the inner'ezitension' of this cage at opposite sides-oftliesliaft embracing portion 26, serve as supports or abutments. for the inner end,V of a coil spring 34 Whose shape is preferably madeto conform to the rectangular shape ofthe cage and theroller holder 17 and Whose outer portion isjadapted to surround kthe said roller holder 1'? and engage the liangeflS ofthe latter, thus placing the roller holder 'p and consequently the roller carried therebyl under tension sufficient to'hold the rollerrmly and evenly in engagement' with its trackway inV a radial line n froml the timer shaft which passes through the center of the cage andthe hold"- er 17.

It isobvious from an inspection of the* parts that the objects of the invention first above stated as Well as the structure ofthe a rectangular support having its sides andends formed by the bent portions of a single .piece ofl material and open at its base, the

meeting ends of said section of material at' one side ofthe support beingA recessed and the other side Yof the support having an integral:y extension curved across the topfo'fl the support and forming' with the upper edges of the ends of' the support' a shaft bearing,V said extension having at' its free end an angular tongue projecting into the recessed portion of the firstmentioned' side of thesupport, a contact roller, arect'angular flanged holder in which the contact roller is journaledi and which is movable into the support through the lower open end of the latter,r and a spring Within the support engaging said roller holding toteiision the4 latter' andy the roller. y

2i A rotorv for timer shafts including a rectangular support formed'by the bent portions of a singlepiece of metal and open at its lower portion', one side of' the support' having an integral extension projecting Y across the. topf ofthev support and forming parallel side shoulders and a curved meinber between said side. shoulders cooperating With' the upper edges of theV ends of the support toform a shaft bearing, a contact roller, a holder in which the roller is journaled-,-

movable'into' the lower open portion ofthe support', and' a" springV Within. the support bearing against the said shoulders and engaging the said roller holder to tension the latter and the contact roller in practice.

lELMEB, J. Leni

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