US2151519A - Distributor for internal combustion engines - Google Patents

Description

March 21, 1939 J. G. KUBELUS DISTRIBUTOR FOR INTERNAL COMBUSTION ENGINES Filed June 5, 1957 fatentcd 9 wigg Tia N ENGINES .l'cseplh t Kubelus, Jessup, ll a. Application runs it, not, Serial. No. 146,530

tributors for the ignition systems oi internal combustion engines.

The main object of my invention is to provide a distributor in which the contacts or terminals are adjustable in a radial direction so that they will at all timesstand at the proper spacing relative to the rotor which rotates between the contacts. Another object is to provide a distributor having a novel form or cover assembly wherein a solid dish-like cover is used to seal the distributor cap or housing against the entrance of dirt and other :forelgn matter but which may be removed 1 to expose the interior of the distributor to view in actual operation, the center terminal beingsupported meanwhile by a cross piece or bridge.

Any defects in the contact spacing and operation may be readily determined by inspection of the parts in actual operation.

A further object is to provide a distributor of this kind in a simple, practical and inexpensive form.

with these and other objects in view the invention resides in the novel construction and arrangement of parts as hereinafter iully set forth and claimed, reference being had to the accompanying drawing as showing a preferred embodiment of my invention for purposesof exemplification.

in the drawing:

Figure l is a vertical cross section through a distributor constructed in accordance with my invention.

Figure 2 is a plan view of the distributor.

Figure 3 is an enlarged cross section of the cap or housing alone.

Figure 4 is a plan View of the cover disk alone.

Figure 5 is a plan view of the cover bar or bridge alone.

figure 6 is a perspective view of the rubber sleeve used to seal around the center contact pin. Referring now with more particularity to the drawing the reference character A designates a distributor body of conventional form. the same including the rotor shaft 13 extended vertically and centrally through it with a drive connection C at its lower end by which it is rotated by the 50 engine to which it is attached (not shown). The

shaft B carries a rotor D at its upper end above the level of the upper end E of the body A, and this rotor has the usual contact cam F and spring G. These parts are all entirely conventional and 55 no invention therefor is herein claimed.

(@l. add-til My invention relates to improvements in dis-=' My invention comprises a cylindrical can or housing 6 adapted to seat at its lower end on. the upper end E of the body ii. on which it is removably secured by hooks ll each made of spring strip pivoted at one end on a pin ll between ears 5 9 on the body A and having at its upper end an inwardly turned prong or knee it which may he engaged in a recess ii in the side of the cap 6. The hooks may be disengaged by springing them free from the recesses ii and the cap 6 may then it be liited from the body A as desired. At radially spaced points around its periphery the cap 6 has V moulded bosses i2 which are faced ofi flush with its upper end 63 as shown. Contact receptacles or seats id of L-shaped iorrn are imbedded in l5 the bosses i2 and have tapped bores i5 opening inwardly radially through the inner peripheral wall of the cap and the other arms of the receptacles are upwardly extended and have tapped bores it to receive the usual distributor wires 20 (not shown). The receptacles M are made of metal to carry current from the wires.

Contacts ll are provided one for each receptacle i4 and each comprises a threaded stem or shank i8, a flat head i 9 and a lock nut it thread- 25 ed on the stem. The stems it are screwed in the bores it of the receptacles id and the lock nuts 20 are turned up against the ends of the bores to lock the contacts therein. The contacts may thus be screwed into or out of the bores E5 to adjust them radially so that the contact cam F on the rotor D will pass each head it at the proper spacing as measured by a ieeler gauge of usual form (not shown) inerted between these parts. This mounting of the contacts ll permits convenient individual adjustment of each contact as may be necessary in use. Of course the number of contacts depends on the number of cylinders in the engine to which the distributor is mounted. V

The upper end 93 of the can t is recessed an nularly around its upper edge forming a seat ii for a gasket 22 and a. cover disk 23 is provided of such diameter and thickness as to fit down on this gasket 22 flush with the end 83. A cover cross bar or bridge 24 is provided and has the narrow center portion 25 and the downwardly turned feet 26 spaced to sit on the upper end id of the cap 6 and the adjacent edge of the disk 23, the extremities of the feet 26 also having downturned hooks 21 to overhang the outer periphery of the cap. This bridge 24 is pressed down in place also holding the disk 23 on its gasket 22 by upper hooks 28. These hooks 28 are similar to the aforesaid hooks I, being made of spring strip and pivoted at their lower ends on pins 29 extended between ears 30 which are turned outward from the hooks 1 midway of their length. The upper hooks 28 have the inturned loops ll which overlie the feet 28 and rest in sockets I! in the upper iaces thereof to hold the cover assembly in place as shown in Figure l.

A center contact receptacle 32 is imbedded in a boss 33 formed centrally in the bridge 2 and a contact pin 34 depends from this receptacle 32 down into electrical engagement with the rotor spring G. The cover disk 23 has a central aperture II to clear the pin 34. The upper end of the receptacle 32 has a threaded bore 38 to receive the usual center wire (not shown).

The receptacle I2 is extended downward somewhat and a boss 31 is extended upward from the disk 23 around the aperture 35. A short length 01 soft rubber tubing 38 is then slipped over these parts sealing the aperture around the pin ll and preventing water or other foreign matter from entering around the pin and hindering the operation 01' the distributor.

The operation 01' the distributor is identical to that of the present forms. By loosening the upper hooks 28 the bridge 24 may be removed, the disk 2! removed, and then by replacing the bridge and hooks the pin 34 will still make con tact with the rotor spring G thus allowing the distributor to continue to operate while permitting a view of the parts as they operate. This is of great advantage in adjusting the distributor for proper operation and locating the cause oi any trouble which may arise.

The cap 6, disk 23 and bridge 24 are all moulded oi Bakelite or similar material for purposes of insulation.

While I have herein set forth a certain preferred embodiment of my invention. it is understood that I may vary from the same in minor structural details so as best to provide a practical device for the purpcnes intended, not departing from the spirit or the invention and within the scope oi the appended claims.

I claim:

1. A cap assembly for mounting atop a conventional form of distributor body, the same including an open cylindrical housing for seating upon the distributor body, a cover disk removably fitted to the predetermined upper edge of the housing, an arched bridge pieceremovably seated over the cover disk with its ends bearing upon the disk, releasable means for securing the housing to the distributor body, and releasable means for securing the bridge piece in place upon the cover disk.

2. A cap assembly tor mounting atop a conventional cylindrical form oi distributor body, the same including an open cylindrical housing for operatively seating upon upper edge of the distributor body, a cover disk removably seated upon the predetermined upper edge of the housing, an arched bridge piece removably mounted over the cover disk with the feet thereof bearing upon the margins thereof to hold same in place, the said feet on the being arranged to likewise operatively engage the said upper edge oi the housing, releasable means for securing the housing to the distributor body, and releasable means for securing the bridge piece in place either upon the cover disk I.

or upon the upper edge of the housing when the cover disk is removed.

3. In an assembly as defined in claim 6, an electrical contact element operatively seated centrally in the bridge piece and extended down 'i.

through the cover disk, the latter being apertured for that purpose, and whereby the cover disk may be removed and the bridge piece then replaced and supported upon the upper edge of the housing with the contact element in operative in position.

JOSEPH G. KUBELUB.

removal oi the cover disk

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