US373577A

US373577A - Centrifugal machine

Info

Publication number: US373577A
Authority: US
Publication date: 1887-11-22
Anticipated expiration: 1904-11-22

Description

(No Model.)

S. S. BARBIE.

GBNTRIFUGAL MACHINE. No. 373,577. Patented Nov. 22, 1887.

7722 31 eases.

& PETERS, Hutu-Lithograph", Wanhinglnn. uhc

UNITED STATES SAMUEL S. BARRIE, OF BROOKLYN, NEXV YORK.

CENTFHFUGAL MACHlNE.

SPECIFICATION forming part of Letters Patent No. 373,577, dated November 22, 1887 Application filed May 1, 1887.

To all whom it may concern.-

Be it known that I, SAMUEL S. BARBIE, of the city of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Centrifugal Machines, of which the following is a specification, reference being had to the accompanying drawings.

The object of this invention is to provide for more effectually restraining the sweep 0r swing of the basket-spindle and the more rapid automatic restoration of thespindle and basket to their normal upright position in case of their being unequally loaded; and to this end my improvement consists in the coinbination,with the said spindle and its upper bearing orjournal-box, of anon-rotating counter-balanceattached to the journal-box, and swinging links or suspension connections for suspending the said box or bearing and counter-balance from fixed points, the said links or connections having in the normal position of the spindle an inclination from their upper ends toward the spindle, whereby the said bearings or box and counter-balance are always kept suspended with the axis of the box or bearing in line with the axisof the spindle.

Figure l in the drawings represents a central vertical section of a hydro-extractor with my improvement applied thereto. Fig. 2 is a plan view of the suspended, loaded, or counterbalanccd journal-box.

Similar letters of reference designate corre sponding parts in both figures.

A designates the basket; B,the basket-spindle,having the basket firmly secured on its upperend, and O the stationary shell surrounding the basket.

On the lower part of the spindle B is a broad fast collar or flange, a, which has acircumference about equal in size to the drivingpulley D. This pulley is bored to fit loosely to the part 6 of the spindle below the flange or collar a; but the spindle does not extend to the bottom of the pulley, a pivot, I), being firmly secured in the bottom thereof to be received in the fixed step-bearing c.

The abovedescribed construction of spindle, driving-pulley, pivot, and friction device constitutes virtually a spindlein two rotating sections, the lower one, 6, of which is sup- Serial No. 237,138. (No mode.)

ported in a step-bearing and carries the driviug-pulley, and the other, 13, carries the basket and a friction driving collar, through which motion is received from the drivingpulley.

Between the top of the pulley and the bot tom of the flange or collar a is a disk, (1, of leather or other suitable substance, to transmit friction between the lower face of the said flange or collar and the upper face of the pulley. This disk is represented as secured in a cavity in the collar or flange. The collar or flange and the upper face of the pulley thus constitute two members of a friction driving device through which the power of the driving belt applied to the pulley is transmitted 'from the pulley to the shaft. The necessary friction is produced in thisdevice by the weight of the spindle, the basket, and the contents of the latter.

When power is applied to the belt, the pulley at once starts at full speed, and the friction between the pulley and the shaft causes the spindle and the basket to start easily and their speed to be gradually accelerated till they attain the maximum speed of the pulley without any straining or slipping of the belt.

E is the upper journal-box of the spindle. Fis the load or counter-balance applied to said journalbox. G G are links by which the said journal-box and counter-balauceare suspended from the bottom of the fixed shell 0, the said links being arranged at equal distances from the normal vertical line of the axis of the spindle and equal distances from each other. By thus applying a loadorcounter-balance to the journal-box and suspending it to hang freely from fixed points the force of gravitation always tends to bring the center of the spindle directly in a point central to the several points of suspension, and consequently to bring the spindle to an upright position, the center of the step bearing being vertically below the said central point.

In the example represented in Fig. 1 and in bold outline in Fig. 2 the counter-balanceF is a heavy disk of metal and the journal-box E is constructed, formed, or secured in the center of the said disk; but the counter-balance may consist ofa central 'hub in or to which the journal-box is constructed or secured, and

which is provided with arms, as shown in dotted outline in Fig. 2, for the purpose of placing the pointsff of its attachment; to the suspending-links G G at a suitable distance from the journal-box and the spindle. The distances of these points of suspension and of the upper fixed points, 9, of suspension'of the said links from the normal or vertical line of the axis of the spindle is such that when the spindle is upright the said links have'inclinations downward toward the center of the spindle, as shown in Fig. l, the inclination being s uch-viz.,about twenty-fivedegrees to the vertical line in the example represented-that the counterbalance will always be suspended in a plane at right angles to the spindle and' with itsjournal-box concentric with the spindle and parallel with the axis thereof, so that the spindle will not'be cramped in the box. Ordinarily the spindle is maintained in a vertical posit-ion by the weight of the counterbalance, the latter being in a horizontal position; but if the unequal load in the basket should throw the spindle out of the vertical line the counter-balance would take a corresponding inclination, and without so me means of compensating for'this inclination the counter-balance would cease to be suspended by some of the links; and it is for this compensation that the links or swinging suspensionconnections are inclined when in their normal positions. To illustrate the effect ofthis inclination of the links or suspension-connec tions. I will suppose that the spindle inclines to the left. The right-hand side of the counter-balance would then be raised and the lefthand side thereof would be depressed; but in the meantime the counter-balance has swung bodily tothe left and taken the lower ends of the links in the same direction, and, owing to the inclination of the links,the right-handlink has its angle with the vertical increased and the left-hand link has its angle with the vertical diminished, the lower end of the righthand one being raised to compensate for the rise of its corresponding side of the counterbalance and the left-hand one being lowered unequally loaded it and the spindle will swing from andabout the true vertical or normal axis; but the tendency of the weight toward its central position, increasing as the spindle swings farther from the normal axis, confines the swing or sweep within a given compass until the load gradually adjusts itself and the spindle assumes the vertical position. 7

The annular cup I (shown fastened to the spindle by aset screw) is a drip-cup to receive any oil that flows down from the upper journal-box, E

, What I claim as my invention, and desire to secure by Letters Patent, is-

The combination, with the basket and its spindle and the upper journal-box of the latter, of a non -rotating counter-- balance and swingiugsnspension-connections,substantially as herein described, for freely suspending the said journal-box and counter-balance from several fixed points, the said connections-having in the normal condition of the spindle an inclination from their upper ends inward towardthespindle,whereby,asthespindleswings out of the vertical position, the journal-box and counter-balance remain suspended with the axis of the journal-box in line with the axis of the spindle, as herein set forth.

' SAMUEL S. BARBIE. \Vitncsses:

FREDK. HAYNES,

HENRY J. MoBRIDE.