US782206A - Means for operating centrifugal machines. - Google Patents

Description

PATENTED FEB. 7, 1905.

W. L. DOLIER.

MEANS FOR OPERATING GBNTRIFUGAL MACHINES.

APPLICATION FILED AUG.19, 1903.

2 BHEETS-HBET 1.

Witne $368:

No. 782,206. PATENTED FEB. 7, 1905.

W. L. DOLIER. MEANS FOR OPERATING GENTRIFUGAL MACHINES.

APPLICATION FILED AUG.19, 1903.

63 I 2 SHEETS-SHEET 2.

Invenzgr: William/LL OZz'er UNITED STATES Patented February '7, 1905.

WILLIAM L. DOLIER, OF PHILADELPHIA, PENNSYLVANIA.

MEANS FOR OPERATING CENTRIFUGAL MACHINES- SPECIFICATION forming part of Letters Patent No. 782,206, dated February 7, 1905. Original application filed November 9, 1901, Serial No. 81,719. Divided and this application filed August 19, 1903. Serial No. 169,980.

To (LZZ whom it may concern.-

Beit known that I, WVILLIAM L. DOLIER, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Means for Operating Centrifugal Machines,of which the following is a specification.

The object of my invention is to drive a centrifugal machine by an electric motor mounted in direct connection with the shaft of the centrifugal machine, as fully described hereinafter.

My invention consists of mechanism whereby a centrifugal machine may be driven by an electric motor, suclf mechanism containing means whereby the centrifugal machine and motor may deflect from a truly vertical position while in operation, the fixed and movable elements of the motor being maintained in relatively unvarying position with respect to each other during such deflection and at all other times.

My invention consists in a centrifugal machine, with an electric motor directly connected thereto, the motor and centrifugal being suspended and free to deflect, the point of suspension being above both the electric motor and centrifugal machine.

My invention consists also of automatic magnetic means for controlling braking mechanism to stop the motor and centrifugal, there being combined with said braking mechanism means for lubricating the bearings of the centrifugal and motor.

Reference is to be had to the accompanying drawings, in which Figure 1 is a side view of the centrifugal machine and motor, illustrating my invention. Fig. 2 is a vertical sectional view through the'motor and hanger, the motorarmature being shown in elevation. Fig. 3 is a plan view, partly in section, taken on the line 3 3, Fig. 1. Fig. 4 isaplan view, partly in section, taken on the line 4 4, Fig. 1.

In said drawings, A represents the ordinary casing or housing of a centrifugal machine, the basket being inclosed within said housing A and secured to the hollow shaft or quill D.

At C is showna hanger or suspension means fixed to some suitable stationary body. C, said hanger or suspension means, is a casting having extended through it in a vertical direction an opening. At its lower end this opening assumes an approximately spherical shape, and in it is located the bushing 0, in which bears the ball or spherical member 7), rigidly secured to the fixed shaft B. The ball 6 is capable of movement in the bushing a, but is prevented from rotation, and therefore prevents the shaft B from rotating. By this arrangement the'shaft B is permitted to defiect from a truly vertical position, and in consequence everything carried by it is likewise caused or permitted to deflect from a truly vertical position. To resist any such deflection, there is provided a resilient body C, such as rubber, which embraces the upper end of the shaft B and is confined between said shaft and the inner walls of the hanger member (J. The body C is confined also between the collar 5 and the washer b the latter being held in position by the nut or bolt 7), which in virtue of screw-threads in the upper end of shaft B may force the washer downwardly, thereby compressing the body 0 to any desired extent, thus increasing the resistance offered to the deflection of the shaft B. The hanger C, in combination with the ball member 7), constitutes, in fact, a suspension means for the centrifugal machine and the electric motor directly connected therewith.

The fixed shaft B extends downwardly and is embraced for the greater portion of its length by the hollow shaft or quill D. To this hollow shaft D are secured the centrifugal basket and the armature or rotating member of the electric motor, as shown at E. The armature or rotating member of the motor is secured to the hollow shaft D in any of the well-known manners for connecting an armature to a shaft, a very common method being the employment of a spider which supports the armature-core, which spider is keyed to the shaft.

It is of great importance that the fixed and movable elements of the electric motor remain always in the same relative position with respect to each other while running and during the deflection of the shaft B for reasons well understood in electrical arts. To this end I have provided means whereby the fixed and movable elements of the electric motor may both swing with the shaft Band during such swinging or deflection remain always in the same relative position with respect to each other. The armature E or rotating member of the motor is secured to the hollow shaft D.

E is the commutator, upon which bear the brushes e e in the manner and for the purpose well understood in the electrical art.

The motor herein shown is of the directcurrent multipolar type, it being understood, however, that any other type of electric motor may obviously be substituted therefor. The field or stationary element of the electric motor comprises the field-ring F, carrying in this instance six poles f each carrying a field-winding f. The field-ring F is secured by bolts 71 to the bracket member G, having in this case a hub member g, keyed to the shaft B, and the four downwardly-extending arms When current is passed through the motor, the armature E rotates in a well-known manner and drives the quill or hollow shaft D, which in turn drives the centrifugal basket. Vhen the basket is rotating at a speed sufficiently high to cause a separation between the different materials contained therein, such basket is likely to deflect, due to unsymmetrical loading and other causes, thus causing the hollow shaft D to deflect from its truly vertical position. hen such deflection occurs, the fixed shaft B, being closely embraced by the hollow shaft D, also deflects, and both the motor and centrifugal basket swing about the ball member b as a center. However, when the shaft B deflects the field or stationary member of the motor is also caused to deflect through the agency of the frame or bracket G, and in consequence the fixed and stationary elements of theelectric motor do not change their position with respect to each other.

Mounted on the upper end of the hollow shaft D and intermediate the armature E and the hub r is the flanged brake-wheel .1, engaged by the brake-strap J, which is attached at one end to the arm j of the brake-lever J. The other end of said brake-strap is attached to the arm. of said brake-lever J. This brake-lever J is pivoted to a downwardlyextending member attached to one of the arms g of the frame G. The arm j is connected by the rod to the core it" of the solenoid K, mounted on a bracket K, secured to the frame G. Also secured to the arm j of the brakelever J is a rope or chain Z, which passes around or over a pulley Z on a bracket L, secured to the frame G, and on the end of the rope or chain Z is fastened a suitable weight L. The weight L tends to cause an engagement between the brake-band J and the brake-wheel I. K is in opposition to that of the weight L. The solenoid K being connected in series with the motor as soon as current passes through the motor the core L is drawn into the solenoid K, thus lifting the weight L and releasing the brake and permitting the motor to drive the centrifugal basket freely. When the current through the motor is interrupted, the solenoid K is no longer able to hold the core L" in opposition to the weight L, and in consequence the brake is auton'iaticall y set and the motor and centrifugal basket brought to rest.

Forming a continuation of the brake-wheel l is an oil-reservoir 11, embracing the fixed shaft B and having an opening in its upper surface slightly larger than said shaft B. Through this opening is fed lubricating material through the funnel r and the tube extending therefrom, as shown in Figs. 1 and 2. The lubricating material within the reservoir '6' is gradually fed downwardly between the hollow shaft D and the fixed shaft B, insuring satisfactory lubrication of all bearingpoints.

This application shows the same mechanism as my copending application, Serial No. 81,719, filed November 9, 1901, of which application this is a division.

\Vhat I claim is 1. In a driving mechanism for centrifugal machines, a fixed shaft, a ball-shaped member rigidly secured thereto, a socket-bearing for said ball-shaped member, a hollow shaft embracing said fixed shaft', a centrifugal basket secured to said hollow shaft, the revolving element of a motorsecured to said hollow shaft, and means rigidly secured to said ballshaped member for supporting the fixed element of said motor.

2. In a driving mechanism for centrifugal machines, a hanger,a member having a socketbearing in said hanger, a fixed shaft secured to said member, a hollow shaft embracing said fixed shaft, a centrifugal basketsecured to said hollow shaft, the rotatable element of a motor secured to said hollow shaft, a bracket for sup portingthe fixed element of said motor securedto said fixed shaft, and resilient means interposed between said fixed shaft and said hanger.

3. In a driving mechanism for centrifugal machines, a member having a socket-bearing in said hanger, and capable of deflection therein, a suspender secured to said member, a centrifugal basket supported by said suspender, the revolving element of a motor directly connected to said basket, a support for the fixed element of said motor deflectable with said member, and resilient means opposing the deflection of said basket and motor.

a. In a driving mechanism for centrifugal machines, a fixed shaft, a revolving shaft supported thereby, a centrifugal basket se- The action of the solenoid cured to said revolving shaft, a fixed motor element supported by said fixed shaft, the rotatable element of said motor connected to said revolving shaft, means permitting the deflection of said centrifugal basket, and resilient means opposing said deflection.

5. In a driving mechanism for centrifugal machines, a hanger, a member having a bearing in said hanger, a suspendersecured to said member, a centrifugal basket supported by said suspender, the revolving element of a motor directly connected to said basket, the

fixed element of said motor secured to said suspender, and resilient means opposing the deflection of said basket.

6. In a driving mechanism for centrifugal machines, a hanger, a fixed shaft defiectable therein, a revolving shaft supported by said fixed shaft, a centrifugal basket and rotatable element of a motor secured to said revolving shaft, the fixed element of said motor supported by and deflectable with said fixed shaft, and resilient means opposing the deflection of said fixed shaft.

7. In a driving mechanism for centrifugal machines, a centrifugal basket, the rotatable element of an electric motor, a shaft directly connecting said motor element and basket, means permitting the deflection of said shaft, means for supporting the fixed element of said motor in unvarying position with respect to the rotatable element, and resilient means opposing the deflection of said shaft.

8. In a driving mechanism for centrifugal machines, a hanger, a socket in said hanger, a spherically-shaped member having a bearing in said socket and deflectable therein, a fixed shaft secured to said spherically-shaped member, a hollow shaft embracing said fixed shaft, a centrifugal basket secured to said hollow shaft, and the rotatable element of a motor secured to said hollow shaft.

9. In a driving mechanism for centrifugal machines, a hanger, a socket in said hanger, a spherically-shaped member bearing in said socket and deflectable therein, a verticallyextending fixed member secured to said spherically-shaped member,a rotatable shaft having a bearing on said vertically-extending fixed member, a centrifugal basket secured to said rotatable shaft, and the rotatable element of a motor secured to said rotatable shaft.

10. In a driving mechanism for centrifugal machines, the combination with a rotatable basket-shaft, and a supporting member therefor stationary as to rotary motion, but having ball-and-socket support arranged to permit deflection of said supporting member and of said basket-shaft, of a motor for driving said shaft, located below said ball-and-socket support, and comprising concentrically-arranged members, one carried by said shaft, and the other by said supporting member, and resilient means opposing the deflection of said supporting member.

11. In a driving mechanism for centrifugal machines, the combination with a rotatable basket-shaft, and a supporting member stationary as to rotary motion, but having balland-socket support to permit deflection of said supporting member and of said basketshaft, of a motor for driving said shaft, located below said ball-and-socket support, and comprising a rotary member and a stationary member, said stationary member being carried by said deflecting supporting member, and resilient means opposing the deflection of said supporting member.

12. In a driving mechanism for centrifugal machines, the combination with a socket-piece for supporting the machine, a supporting member having a ball member engaging in. said socket, said ball and socket arranged to permit deflection of said supporting member, and a rotatable basket-shaft supported by said supporting member, of a motor for driving said shaft comprising a rotating member carried by the basket-shaft, a stationary member carried by said supporting member, and resilient means opposing the deflection of said supporting member.

13. In a driving mechanism for centrifugal machines, the combination with a deflecting non-rotating supporting member having balland-socket supporting means, and a basketshaft rotatably mounted and supported by said supporting member, of a motor for driving said basket-shaft, located below said ball-andsocket supporting means, and comprising a rotating member carried by said basket-shaft, a stationary member carried by said supporting member, and resilient means opposing the deflection of said supporting member.

WM. L. DOLIER.

IVitnesses:

JOHN 'IliIEL, JNo. P. GRoAsDALn.

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