US1442102A - Aligner for engine pistons - Google Patents

Description

Jan. 16, 1923. 1,442,102.

0. c. SPANGENBERGER.

ALIGNER FOR ENGINE PISTONS.

FILED MAYV24, x921.

/r1 verr for.- air-Z C. sp anqenl er'yer aviation, automobile, and other engme-pis v p "for ahnement of the; piston in" different I po'-, sitions.- The aligner plate Qhis, also rota- Patented Jan. 16, 1923.

canto; srAnGENBEnG n, onvENio'E,.oALiFonNrAq f mememan P ams;

Application filed May 24,1921;

at Venice, in the county of Los Angeles' and State of California, have invented a new and useful Aligner for Engine J Pistons 'of which-the follownig is a specification;

1 The invention relates tomeans fora'lin ng tons perpendicular to the crankshaft, and

for finding twists in the connecting rods,

' and the main- -object of the invention is to provide convenient andefi'ective means for this purpose which will ensure correct aline.-

ment with reference to the axis of the shaft.

The accompanying drawings illustrate the invention} and referring thereto Fig. 1 is a side elevation of the aligner in position for use, the engine shaft and piston being indicated in dotted lines;-

' Fig. 2 isan elevation atrightangles to Fig. l. Y I The form of the invention shown in the drawings comprises a faceplate 1 having a finished or surfaced face 2 formed as a plane surface, said plate being mounted eccentri-- cally on a stem or supporting rod 3 extending through a split clamping sleeve 4 on a supporting arm 5, said clampin'g sleevebeing provided with a bolt or screw 6 for tightening the same on the stem 3 whereby the face plate 'may be adjusted relatively to the supporting arm 5. On account'of the eccentric mounting of the face plate 1 on 35 the rod 3, said face plate extends farther in one direction (the upward direction in position shownin Fig. 1) from its center of rotation than in the opposite direction, enabling it to be placed alongside the piston in either up or down position of same, and to avoid interference with the crank pin in the upward throw thereof, the face plate being then placed in position shown in Fig. 1. Thesupporting arm 5 is provided with a yoke member 7 on which is pivotally, mounted at 8 a movable yoke member :9- 1 adapted to be releasably held in position by' means of snap catch or latch 10 pivotally mounted at 11 on the member 7 and adapt-' ed to engage under a lug 12 ontheimovable yoke member 9, saidv lug being undercut to retain the parts in position. A bear,

ing plate 13 iscarried by a manuallyoper ated screw 1 1 and is adapted. to engage the.

"sensual-472,032;

crank pin oftheengineshaft-indicated. at

15' to hold the same against a -V-block- 16f mounted} on j the crank pin. so as to provide table in the supporting means :3 byloosening clamp 4 and turning rod- 3 insaid clamp,

so that the said plate may be swung to posij 1' tion shown-in'Fig. 1, to aline the piston when it is up, or to reverse position to aline the piston when it is'down (the shaft being turned 180 degrees from the position. shown in Fig. 1). By this" means the piston may be: alined' throughout its stroke.

The device is used as followsp' Theyoke' member 9'is released from the yokevmember 7 and said yoke members are placed around a throw or crank pin portion of a shaft, as indicated, a suitable V-block having been inserted to adapt the device to the particular shaft for whichalinement is to be made, the'yoke member 9 being held ,in closed position by catch" lOand the screw l llbeing operated to cause bearing plate .13

to press the shaft againstthe V-block, the

parts16 and,14l then embracing and fitting on the shaft.v The face plate 1 isadjustedf,

by the clamping means 6 and 4 so as-to bring it to proper position for engaging "the cylindrical surface of the piston 17 corresponding -to the next or adjacent throw 7 or crank -'pin"of the shaft and the piston is then alined so as to cause-it to-stand snug and parallel plate.

to the finished surface of the If the piston idoes notffst'and snug and par-. 9

allelto the plate it should be' made to dose.

1 l i This operation is then reversed to the other i side and finally" to the center again to check upon it." The surface of the face plate bering formed as a plane surface perpendicularto the axis of the crank pin and to the axis of the engine shaft, the-device may be used for detecting angulardisplacement of the piston pin, by swinging'thepiston o jits pin and noting Whether it rides fiat on the gauge plate surface as it should do if the piston pin is properly positioned.

1. An aligner for engine pistons comprising supporting means adapted to embrace and rotatably fit on a crank pin portion of the engine shaft; and a face plate rotatably mounted on the aforesaid supporting means to turn on an axis parallel to theaxis ofsaid shaft, said plate having an aligning face formed a plane, extending perpendicular to the axis of theshaft andadaptd to engage the face =of the piston. connected to said shaft said face plate being eccen.tr1

callymounted onnits said support,- so as to have a greater; extension in one direction from its center of rotation than; in the opposite direction;

2; An alignerfor engine pistons compris ing a faceplate adapted to engage laterally with the piston; a rod secured to said face plate, an arm having clamping means adiustably engagingjsaid rod, yoke member on said arm,-a mova'bl'eyoke member pivotally connected to aforesaid yoke member and a catch for holdingsaid yoke members in closed position; said "yoke members being pIQVlCleClJYlf/h means for'engaging a shaft and for holding the said face plate in a plane perpendicular to the axis of the shaft.

An alignerfas set forth in claim 2,

wherein said shaft engaging meanscomprise a V-block carried by one said yoke members and means .adjustably mounted in the other of said yoke members for engaging the shaft to hold it engagement with the said V- block.

In testimony whereof I havehereunto I scribed my name: this 29th day f Apr 1921 i CARL or; srnnennennenm a

Images