US782024A - Apparatus for testing the balance of rotating bodies. - Google Patents

Description

No. 782,024. PATENTED FEB. 7, 1905. G. J. A. HEISE.

APPARATUS FOR TESTING THE BALANCE OF ROTATING BODIES.

APPLICATION FILED NOV. 7, 1904.

2 SHEETS-SHEET l.

WITNESSES. INVENTOR I y I I I H mw R1 g Q ATfORf/EY No. 782,024. PATENTED FEB. 7, 1905.

c. J. A. HEISE. APPARATUS FOR TESTING THE BALANCE OF ROTATING BODIES.

APPLICATION FILED NOV. 7. 1904.

2 SHEETS-SHEET 2.

ATTORNEYS WITNESSES:

, UNITED STATES Patented February 7, 1905.

PATENT OFFICE.

CHARLES J. A. HEISE, OF NEWARK, NETY JERSEY. ASSIGNOR OF FORTY FIVE ONE HUN DREDTHS NETVARK, N ETV JERSEY.

TO FRANZ J. BEYER, OF

APPARATUS FOR TESTING THE BALANCE OF ROTATING BODIES.

SPECIFICATION forming part of Letters Patent No. 782,024; dated February 7, 1905.

Application filed November 7, 1904. Serial No. 231.719.

Be it known that I, OnAaLns J. A. Hmsu, a citizen of the United States, and a resident of Newark, in the county of Essex and State of New Jersey, have invented a new and improved Apparatus for Testing the Balance of Rotating Bodies, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved apparatus for testing the balance of high-speed rotating bodies-such as grinding and polishing wheels, pulleys, and the like arranged to readily detect existing inaccuracies with a view to correct the same prior to the use of the rotating body on the ma hine for which it is designed and to allow of adjustment to accommodate larger or smaller testing'shafts for heavier or lighter bodies to be tested.

The invention consists of novel features and parts and combinations of the same, as will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure '1 is an end elevation of the improvement. Fig. 2 is a side elevation of the same, parts being in section. Fig. 3 is an end view of a modified form of the improvement; and Fig. at is a side elevation of the same, parts being in section.

The spaced standards A and A are mounted on a single base B or on bases separated from each other any desired distance according to p the length of the testing-shaft, and each of \Vhen the several parts are in the position illustrated in Figs. 1 and 2, then the testingshaft G is supported by thetwo pairs of rings F, mounted to turn on ball-bearings carried by the standards A and A, and consequently the shaft (1" when rotated encounters comparatively little friction, owing to its support on the rings F rotating independently one of the other and with the shaft G and approximately at the same surface speed.

By the arrangementdescribed the point of over-balance of the rotating body ll can be readily detected by the operator.

As shown in Figs. 1 and 2, the cones l) and D are pressed apart by springs I)", and the cones are readily adjusted toward each other by suitable nuts I, screwing on the corresponding spindle U, so as to insure a proper contact of the balls E on the said cones. The innerface of each supporting-ring F is provided with an annular ball-race F preferably made V-shaped in cross-section to contact with each ball at two points, and as the cones are adjusted as described they can be brought in proper relation to the annular race F to insure easy running of the supporting-ring F on its ball-bearing.

In order to accommodate larger or smaller testing-shafts Gr, the spindles O on each standard A and A are held adjustably thereon in a transverse direction,and for this purpose the standards A and A are preferably provided with elongated slots A through which extend the outer ends of the spindles, the latter after proper adjustment is made being secured in position by screwing up the nuts C on the outer ends of the spindles.

In the modified form illustrated in Figs. 3 and 4 the standards A and A,secured on the base B, are provided with sets of spaced bearings A for the spindles Oisecured in place in either of the bearings by screwing up the nuts 0" on the outer ends of the spindles. By this arrangement the spindles can be moved nearer together or farther apart to accommodate larger or smaller testing-shafts G", carrying the bodies H to be tested, the testing-shaft being in contact with and shifted by the annular ribs F of the rings F surrounding the pairs of cones D and Di held adjustably on the spindles C by being screwed thereon and locked in place after the desired adjustment is made by nuts I screwing on the said spindles. Each of the cones D and D supports a set of balls E or E and the said balls are in engagement with the inner faces of the supportingrings F; but the balls for each ring are kept apart by an annular rib F", extending integrally on the inner face of the ring F The testing apparatus illustrated in Figs. 3 and L is used the same as above described in reference to Figs. 1 and 2, so that further description thereof is not deemed necessary.

It is understood that the standardsA A are placed adistance apart according to the length of the testing-shaft, and as the latter rests on a set of supporting-rings-it is evident that accurate horizontal alinement of the standards A A is not absolutely necessary.

Havingthus described my invention,I claim as new and desire to secure by Letters Patent 1. An apparatus for testing the balance of rotating bodies,provided with means for supporting the testing-shaft, the said means comprising separate standards, each carrying a pair of spindles arranged parallel one to the other, a. pair of cones on each spindle, a testing-shaft-supporting ring surrounding each pair of cones,and balls interposed between the pair of cones and the said supporting-ring.

2. An apparatus for testing the balance of rotating b0dies,provided with means for supporting the testing-shaft,the said means comprising separate standards,each carryinga pair of spindles arranged parallel one to the other, a pair of cones on each spindle,a testing-shaftsupporting ring surrounding each pair of cones and provided on its inner surface with an annular ballrace,and balls in the said race, in engagement with the said pair of cones.

3. An apparatus for testing the balance of rotating bodies, provided with means for supporting the testing-shaft, the said means comprising separate standards, each carrying a pair of spindles arranged parallel one to the other, a pair of spaced cones held on each spindle, a supporting-ring surrounding each pair of cones and provided at its peripheral surface with an annular rib for supporting the testing-shaft for the rotating body, and balls interposed between the said pair of cones and the said supporting-ring.

4. An apparatus for testing the balance of rotating bodies, provided with means for supporting the testing-shaft, the said means comprising separate standards, each carrying a pair of spindles-arranged parallel one to the other, a pair of spaced cones held on each spindle, a supporting-ring surrounding each pair of cones and provided at its peripheral surface with an annular rib for supporting the testing-shaft for the rotating body, balls interposed between the said pair of cones and the said supporting-ring, and means for adjustably supporting the said spindles on the said standards.

5. An apparatus for testing the balance of rotating bodies, provided with means for supporting the testing-shaft, the said means comprising separate standards, each carrying a pair of spindles arranged parallel one to the other. a pair of spaced cones held on each spindle, springs interposed between the 0pposite faces of the said cones, a supportingring surrounding each pair of cones and provided at its peripheral surface with an annular rib for supporting the testing-shaft for the rotating body, and balls interposed between the said pair of cones and the said supporting-ring.

6. An apparatus for testing the balance of rotating bodies, provided with means for supporting the testing-shaft, the said means comprising spaced pairs of supporting-rings, each ring having an annular rib on its peripheral face for contact by the peripheral face of the testing-shaft carrying the rotating body to be tested, and ball-bearings for the said supporting-rings. 7. An apparatus for testing the balance of rotating bodies, provided with means for supporting the testing-shaft, the said means comprising spaced pairs of supporting-rings, each ring having an annular rib on its peripheral face for contact by the peripheral face of the testing-shaft carrying the rotating body to be tested, and ball-bearings for the said supporting-rings, each ball-bearing comprising nonrotatable cones within a supporting-ring and adjustable toward and from each other and balls interposed between the inner face of a supporting-ring and the corresponding pair of cones.

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

OHARLES J. A. HEISE. Witnesses:

THEo. (Jr. HOSTER, EVERARD BOLTON MARsHALL.

Images