US989043A - Means for balancing centrifugal bowls. - Google Patents

Description

J. POHL.

MEANS FOR BALANCING OBNTRIFUGAL BOWLS.

APPLICATION PILBD'JAN. 1a, 1910.

989,043. Patented Apr. 11, 1911 2 BHEETS8HEET 1.

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J. POHL.

MEANS FOR BALANCING CENTRIFUGAL BOWLS.

APPLIOTION FILED JAN-18. 1910.

989,043. Patented Apr. 11,1911.

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JOHN POI-IL, F BLOOMFIELD, NEW JERSEY.

MEANS FOR BALANCING CENTRIFUGAL BOWLS.

Specification of Letters Patent.

at0llt0(l Apr. 1.1, 1911.

Application filed January 18, 1910. Serial No. 538,667.

fl '0 all whom it may concern: I

lie it known that. l, JOHN Form. a subject of the Czar of Russia, residing at Bloomfield, in the county of Essex and State of New Jersey, have invented certain Improvements in Means for Balancing Centrifugal Bowls, of which the following is a specification.

This invention relates to the art of balancing bodies or members which in use are rate of ten or twelve thousand revjolutions per minute.

The common method of bal- \ancing heretoforc'in use has been to rotate the bowl 0 member and from its irregularmotion det rmine the circumferentially light zo points; thena ply additional weight, by

solder or the li e, to the inside of the howl at such light points and test again, until the bowl or member rotates evenly.

The objects of the present invention are I to enable the compensating weights to be removably applied to the outside of the rotary member being balanced, until its perfect balance is attained, and then permanently secured upon the inside of said member; to thus save much time and labor,- and reduce the cost of balancing; to rovide means for removably applying weig its to any circumferential point of the outside of the rotary member being balanced, and to obtain other advantages and'results as may be brought out in the following description.

Referring to the accompanying drawings, in which like numerals of reference indicate corresponding parts in each of the sev- 40 eral figures, Fi ire 1 shows in side elevation the rotary bow or member of a centrifugal cream separator being balanced by my improved method; Fig. 2 is an enlarged view of one of the weights employed in carrying out my invention; Fig. 3 is a plan of the ring shown at about the middle part of the bowl in Fig. 1, and illustrating one form of construction; Fig. 4 1s a section of the same on line H of F 1g. 3; Fig. 5 1s a plan (it the ring shown at the lower part of the bowl in Fig. '1, said ring being of the preferred construction, and Fig. (5 is a cross tion taken, on line 6--6 of Fl." 5

In said drawings, and particularly Fig. 1,

5 10 indicates the bowl of a centrifugal cream separator, having the spindle 11 provided with worm 12 adapted to be engaged by worm wheel 13 to rapidly rotate the bowl in bearings (not shown) of any suitable and well-known construction. It will be understood that while 1 have employed such a bowl to illustrate my invention, it is only illustrative of any body or member which is intended to be rotated at high speed, and therefore must be balanced. There are many centrifugal machines having such bodies or members, and my invention is especially applicable to them.

In carrying out my improved method of balancing the bowl 10, I secure to the bowl a member which provides a circumferential series of seats or sockets in a plane substantially at right angles to the axis of rotation of the bowl. More than one of these members can be employed if desired, and in practice I find it advantageous in balancing cream separator bowls to employ thrce,'one at the top, one at the bottom,'and one half way between. It will be understood, however, that the use of any one member embodies the features of my invention. These members may be of any desired detail construction and secured to the bowl or rotary body in any suitable manner, either upon its outside or inside, but for purposes of illustration l have shown them as rings lit ting around thecroam separator bowl 1.0 and adapted to be made fast thereon by set screws 17 or 27 working radially through the rings. I

The ring 14 which I have shown upon the middle portion of the how], has at its upper I side an inner shoulder 15 which engages the beveled upper portion 101 of the bowl to hold the ring against dropping downward. Said ring has transverse to its plane a series of holes or sockets l6.

The ring 24 which I have shown at the lower part of the bowl 10 differs in having no inner shoulder, but a uniform cylindrical interior, and obviously such shoulder is notan essential feature of the invention. The sockets or seats 26 in the ring 24 are furthermore not holes arranged "midway between the inner and outer sides of the ring, but are recesses or grooves in the inner wall of the ring, as clearly shown in Figs. o and (3. This construction of sockets or seats enables 'them to be located closer to the side of the bowl or other rotary body to be balanced.

The seats or sockets in the members which are to be secured to the rotary body to be balanced are adapted to removably receive a weight or weights, which may be of any desired form oi construction adapted to be retained in said seats or sockets during rotation of the rotary body and at a substantially fixed radial distance from the axis of rotation of the said body. These weights are preferably formed of lead or sold er, and for purposes of illustration I have shown them in the drawing as U-shaped and made out of round wire so that the legs 18, 18 of the weight 19 can be inserted in the sockets or seats of the member secured to the rotary body.

In carrying out my improved method of balancing, one of the members providing a circumferential series of seats or'sockets is applied to the rotary body, and then said body is caused to revolve at a high rate of.

speed. The operator locates the light portion to the-best of his ability and inserts a weight in the said member at such light point. He then revolves the rotary body again, and by changing the position of the weight and substituting larger or smaller wei hts if necessar he uickl and'accusecured to the inside of the bowl preferably, and in doing this proper allowance is made for the difference of radial distance.

1t will be apparent to those having mechanical skill that various modifications can be made in the detail construction of my improvedmeans for balancing, without departing from the spirit and scope of my invention, and 1 wish to be understood as notlimiting myself by positive descriptive terms herein employed, except as,tl1e state of the art may require.

Having thus described the invention what I claim is- 1. The combination with a rotary body,

and means for rotating said body upon a vertical axis, of a member removably secured to said rotary body to rotate therewith and providing a series of sockets concentric with said rotary body, and a weight adapted to be mounted in said sockets at diiierent points of the said series.

2. The combination with a rotary body,

and means for rotating said body upon a vertical axis, of a ring removably secured .to said rotary body to turntherewith and providing a circumferential series of sockets and a weight adapted to be mounted in said sockets at different points of the circumference of said member. p

3. The combination with a rotary" body and means for rotating said body upon a vertical axis, of a ring removably made fast to the outside of said rotary body and hav ing in itself substantially perpendicular to its plane an annular series of seats or sockets concentric with said rotary body, and a .weight adapted to be removably inserted in said seats or sockets.

4. A device for balancing rotary bodies, comprising a ring having in its inner wall a series of transverse grooves, means for holding said ring in place on a rotary body,

and a weight adapted to be removably inserted in said seat-s'or sockets.

The combination with a rotary body having a cylindrical portion,.and means for rotating said body: upon a vertical axis, of

a ring removably secured to said rotary body to turn therewith, said ring providing a circumferential series of sockets and having an inner shoulder overlying the upper end of said cylindrical portion, and a weight adapted tobe mounted in said sockets atv different points of member.

6. The combination with a rotary body, and means for rotating said body upon a vertical axis, of a member removably secured the circumference; of said to said rotary body to rotatetherewith and providing a series of sockets concentric with said rotary body, and a U-shaped weight whose arms are adapted to enter two of said sockets simultaneously at diiierentpointsof the said series.

In the presence of- RossnLL M. Evnnnrr,

Frances E. Bnonen'r'r.

JOHN roan

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