US811678A - Balancing device. - Google Patents

Description

No. 811,678. PATENTBD FEB. 6, 1906.

W. L. WATERS.

BALANCING DEVICE.

APPL IOATION FILED DEC. 5. 1904- WiInesses Invantnr William I..WEIEFE AIlurng u PATENT OFFICE.

UNITED STATES Specification of Letters Patent.

Patented Feb. 6, 1906.

'Applieatiolifiled December 5 1904. Serial No. 235,457-

To all whom it may concern: a Be it known that I, WILLIAM L. WATERS,

I a subject of the King ofEn land, residing at Milwaukee, in the county 0 Milwaukee and State of Wisconsin, have invented a certain new and useful Improvement in Balancing Devices, (Case No. 11,) of which the following is a full, clear, concise, and exact description,

. umps, it is necessary t at the disks be absoutely balanced. Disks even when formed of supposedly uniform material may be slightly unbalanced, and the unbalance is increased as buckets or mains are secured to the disk. I employ a novel method for compensating for deficiencies in weight which )roduce unbalancing, and each disk there- 'ore is provided with a series of holes extend 1n in a circle concentric. with the disk or 0tl 16IWlS6, which holes are adapted for the reception of rivets. I also provide an improved balancing apparatus for determining where these rivets must be placed to reduce balance. This ap aratusconsists o a spindle upon which t e disk to be balanced is mounted, this s indie having knife-ed es coincident with tie axis of the spindle or engaging balancing-ways, an indicating-needle being secured to the spindle and a scale for the needle being provided. Across the disk to be balanced are drawn two perpendicular diametrical axes. The disk is first mounted on the spindle with one of the axes arallel to construction of the 'ap aratus therefor will be best understood wit reference to the ac companying drawings, in which Figure 1 is a more or less diagrammatic view illustrating a disk mounted on the balancing-spindle with its axes parallel to the struction and arrangement of the balancingapparatus parts. ig. 3 is a side elevation o the disk-supporting spindle and the pivot edges, and Fig. 4 is and end view of Fig. 3.

The disk I have illustrated consists of a hub portion 1, having a flange 2, to which is secured the sheet-metal disk 3 by means of rivets 4. A series of holes or openings 5 is drilled or punched through the disk 3 and may be arranged in any manner-for' instance, in a circle, as shown in Fig. 1. These openings or holes are intended for the reception of rivets 6. As buckets, such as 7, are secured to the periphery of the'disk, more or less unbalance of the entire bucket-wheel about its axis is produced, and this unbalance must be compensated for and corrected to procure efficiency.

The spindle 8 of the balancing apparatus has extensions 9 and 10 from the ends thereside of the needle. Fig. 2 shows the conof, these extensions being beveled down to form knife-edges 11 and 12, which coincide with the axis of the spindle 8. These edges rest on hardened-steel supports 13 and 14, which are shown as consisting of a body part 15 and legs 16. These supports saddle over paralial balancing- ways 17 and 18, and by means of set-screws 19, passing through the legs 16, these supports may be secured to the balancing-ways at any point thereof. An indicating-needle 20 is secured to the end of the extension 10 by -means of a screw 21, the center line of the needle extending perpendicularly through and from the knife-edge. A scale 22, which may be suspended from the balancin -ways, disposed so that the point 23 of the needle will rest at the zeropoint of the scale when the needle is in vertical position.

As the extensions 9 and 10 are disposed above the axis of the spindle 8, the spindle will be unbalanced; but the Weight of the needle 20 is such as to neutralize the effect of the extensions and to perfectly balance the spindle, so that it will remain in an position to which it is rotated about the knife-edges. To secure the disk to be balanced to the spindle, a bushin 24 is provided, which snugly fits the spin is and the bore in the hub 1 of the bucket-wheel. Bushings of various sizes may be used to fit the varying sizes of bore of the bucket-wheels.

' Before the bucket-wheel is mounted on the balancing a paratus axes X and Y are drawn across the ace thereof, as shown in Fig. 1;

For the first operation of balancin the bucket-wheel is mounted so that the axis coincides with the central line of the needle.

- If the point of the needle moves to either side of the zero-point, the bucket-wheel is out of balance, and one or more rivets 6 are inserted in the appropriate holes to restore the Wheel to perfect balance with respect to the axis X. The bucket-wheel is then turned until the Y axis coincides with the needle center line and the same operation erformed to restore the wheel to balance with respect to this axis, and-after these two operations the wheel will be in perfect balance.

The ways 17 and 18 may be of any length to allow for any number of balancing apparatus. p

Other changes in construction and arrangement of the parts may also be made Without departing from the -s irit of invention, and I i do not, therefore, w1sh to be limited to the exact arrangement and construction shown.

I claim as new, however, and des re to secure by Letters Patent- 1. In balancing apparatus for disks 01'- upon which the wheel or disk to be' ba anced is mounted, said spindle bein provided at its end with pivoting knife-ed es, supports for said spindle engaged by saif pivot edges, an indicating-needle extendin from said 3 indle, and an indicating-scale for said nee- 3. In balancing apparatus for balancing wheels or disks, the combination of a s indle upon which the wheel or disk to be ba anced is mounted, there being extensions from said spindle provided with nife-edges coincident with the axis of the spindle, supports for said spindle engaged by said knife-edges, an indieating-needle extending from one of said extensions, and a scale for said indicating-needle.

4. In a balancing device for balancing wheels or disks, the combination of asplndle uponwhich the disk or wheel to be pivoted is mounted, there being extensions from the ends of said s indle having knife-ed es coin cident with t e axis of the spindle, earings engaged by said knife-edges, balancing-Ways upon which said bearings are mounted, an indicatingneedle extending from one of said extensions, and an indicating-scale for said needle.

5. In a balancing device for balancing wheels or disks, the combination of a s indle upon which the wheel or disk to be ba anced is mounted, there being extensions from the ends of said spindle disposed above the axis thereof, having knife-edges disposed coincident with the axis of the spindle, bearings engaged by. said knife-edges, parallel balancing-ways separably engaged by said bearings,

extensions and extending downwardly there from with its center line extending perpendicularly through the axis of the spindle, and an indicating-scale for said needle.

6. In a balancing 'device for balancing wheels or disks, the combination of a s indleupon which the heel or disk to be be anced is mounted, there being extensions from the ends of said spindle disposed above the axis an indicating-needle secured to one of said thereof, said extensions having knife-edges at the lower end thereof disposed coincident with the axis of the spindle, steel bearing plates engaged by said knife-edges, parallel supporting-ways upon which said bearings are movably mounted, an indicating-need e secured to one of the extensions and extending downwardly therefrom with its center line passin through the axis of the s indle, and an in icating-scale for said nee e, the weight of the needle below the axis of the spindle being such as to balance the weight of the extensions above the axis of thespindle.

In witness whereof I hereunto subscribe my name this 1st day of December, A. D.

WILLIAM L. WATERS. Witnesses: 1

JOHN E. HUBEL, W. S. MAY.

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