US226271A - blaisdell - Google Patents

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US226271A
US226271A US226271DA US226271A US 226271 A US226271 A US 226271A US 226271D A US226271D A US 226271DA US 226271 A US226271 A US 226271A
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rings
basket
shell
blaisdell
screen
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/46—Edge filtering elements, i.e. using contiguous impervious surfaces of flat, stacked bodies

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  • the object of myinvention is to provide the basket of a centrifugal machine with a screen of a more durable character thannsual-an object which I attain in the following manner, reference being had to the accompanying drawings, in which- Figure 1 is a vertical section of the basket of a centrifugal machine provided with my improved screen; Fig. 2, a sectional plan on the line l 2; and Figs. 3 and 4, perspective views of portions of rings, showing' modifications of my invention.
  • the ordinary basket of a centrifugal machine consists of a bottom plate, A, with hub a, a series of cylindrical screens of wire-gauze or perforated plate, and an annular flange at the top.
  • Another plan of making screens has been to make a spiral slit in a hollow cylinder, so as to reduce it to the condition of a coil held together by exterior ribs 5 but this is a very expensive plan, and the screen could not be easily repaired should any accident occur to one of the convolutions.
  • the rings l) are fitted within the outer shell, B, of the basket, against which the outer edges of the said rings bear, an annular plate, D, bolted to a ilange, t, on the upper edge of the shell B, serving to secure the rings in position vertically.
  • the discharge from the basket is facilitated by notching or recessing the outer edges of the rings b, so as to form spaces adjacent to the shell B.
  • the outer edges of the rings may' be waved, as shown in Fig.
  • the lugs d may be dispensed with by forming radial channels directly in the rings, 6o as shown in Fig. et.
  • Each ring is, by preference, severed at one point in its circumference, so that they vmay be expanded until they lit closely to the surrounding shell or casing. 7o
  • the within-described screen for centrifugal machines said screen consisting of a number of separate rings arranged one upon the other, with intervening spaces or channels, all substantially as set forth.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Centrifugal Separators (AREA)

Description

A. H. BLAISDELL. Centrifugal-Machine.
No. 226,271. Patented April 6,1880.
N. PETERS, PHUTQ-LITHoGHAFHER, wAswmGYoN. D s;4
ARLOND H. BLAISDELL, OF VINELAND, NEW JERSEY, ASSIGNOR TO JAMES H. WELLS, OF SAME PLAGE.
GENTRIFUGAL MACHINE.
SPECIFICATION forming part of Letters Patent No. 226,271, dated April 6, 1880.
Application filed August 25, 1879.
To all whom it may concern:
Be it known that I, ARLOND H. BLAISDELL, of Vineland, Cumberland county, New Jersey, have invented a new and useful Improvement in Centrifugal Machines, of which the following is a specification.
The object of myinvention is to provide the basket of a centrifugal machine with a screen of a more durable character thannsual-an object which I attain in the following manner, reference being had to the accompanying drawings, in which- Figure 1 is a vertical section of the basket of a centrifugal machine provided with my improved screen; Fig. 2, a sectional plan on the line l 2; and Figs. 3 and 4, perspective views of portions of rings, showing' modifications of my invention.
The ordinary basket of a centrifugal machine consists of a bottom plate, A, with hub a, a series of cylindrical screens of wire-gauze or perforated plate, and an annular flange at the top.
Screens of the character described soon become worn out and have to be replaced, and it is with the view of overcoming this objection that my invention has been devised.
Another plan of making screens has been to make a spiral slit in a hollow cylinder, so as to reduce it to the condition of a coil held together by exterior ribs 5 but this is a very expensive plan, and the screen could not be easily repaired should any accident occur to one of the convolutions.
I make the screen of a series of thin sheetmetal rings, l), placed one on top of another, with suitable intervening spaces, the latter being produced in the present instance by forming on one side of each ring lugs d.
The rings l) are fitted within the outer shell, B, of the basket, against which the outer edges of the said rings bear, an annular plate, D, bolted to a ilange, t, on the upper edge of the shell B, serving to secure the rings in position vertically.
When the machine is in operation the liquid extracted from the contents of the basket passes through the spaces between the rings, and thence through the perforations of the shell B into the outer casing, (shown by dot- 5o ted lines,) by which the liquid is collected'and conveyed to the point of discharge.
The discharge from the basket is facilitated by notching or recessing the outer edges of the rings b, so as to form spaces adjacent to the shell B.
Instead of having notches f, the outer edges of the rings may' be waved, as shown in Fig.
3, and the lugs d may be dispensed with by forming radial channels directly in the rings, 6o as shown in Fig. et.
As the edges of the rings are presented to the action of the contents of the basket, such rings will resist the wear to which they are subjected for a much longer time than simple screens of wire-gauze or perforated plate.
Each ring is, by preference, severed at one point in its circumference, so that they vmay be expanded until they lit closely to the surrounding shell or casing. 7o
It will be seen that if any of the rings should be damaged they can be easily removed and replaced with new ones.
I claim as my invention- 1. The within-described screen for centrifugal machines, said screen consisting of a number of separate rings arranged one upon the other, with intervening spaces or channels, all substantially as set forth.
2. The combination of the shell B of the 8o basket with the rings b, split as described, so as to be adapted to said casing or shell, as set forth.
3. The combination of the shell B of the basket with the rings I), having notches or re- 8 5 cesses j", as set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
ARLOND H. BLAISDELL.
Witnesses ALEXANDER PATTERSON, HARRY SMITH.
US226271D blaisdell Expired - Lifetime US226271A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778501A (en) * 1949-12-06 1957-01-22 Western States Machine Co Centrifugal basket strip linings
US4246106A (en) * 1967-11-20 1981-01-20 Dolgov Anatoly V Method for refining melts from solid impurities
US4517088A (en) * 1982-01-25 1985-05-14 Quantum Systems Corporation Filtering apparatus
US4871457A (en) * 1985-06-10 1989-10-03 Mordeki Drori Disk filter
US4880537A (en) * 1985-04-10 1989-11-14 Mordeki Drori Multiple disc type filter and disc construction useful therein
US4906357A (en) * 1987-07-26 1990-03-06 Mordeki Drori Filter system having multiple filter elements and back flushing assemblies
US4906373A (en) * 1988-06-21 1990-03-06 Mordeki Drori Multiple filter elements with movable flushing assembly
US4935126A (en) * 1986-02-11 1990-06-19 Mordeki Drori Filtering apparatus
US4966702A (en) * 1984-12-24 1990-10-30 Mordeki Drori Multiple-disc type filters
US4978450A (en) * 1986-02-11 1990-12-18 Mordeki Drori Filtering element
US5013461A (en) * 1987-09-18 1991-05-07 Mordeki Drori Regeneration method of filter device having filter aid material and piston apparatus
US5015379A (en) * 1988-03-16 1991-05-14 Mordeki Drori Coiled filter strip with upstream and downstream butt ends
US5030349A (en) * 1989-01-12 1991-07-09 Mordeki Drori Filter apparatus
USRE34218E (en) * 1983-09-02 1993-04-13 Easily-cleanable filters
US20060032200A1 (en) * 2002-08-22 2006-02-16 Claes Karlebratt Screen for gases

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778501A (en) * 1949-12-06 1957-01-22 Western States Machine Co Centrifugal basket strip linings
US4246106A (en) * 1967-11-20 1981-01-20 Dolgov Anatoly V Method for refining melts from solid impurities
US4517088A (en) * 1982-01-25 1985-05-14 Quantum Systems Corporation Filtering apparatus
USRE34218E (en) * 1983-09-02 1993-04-13 Easily-cleanable filters
US4966702A (en) * 1984-12-24 1990-10-30 Mordeki Drori Multiple-disc type filters
US4880537A (en) * 1985-04-10 1989-11-14 Mordeki Drori Multiple disc type filter and disc construction useful therein
US4871457A (en) * 1985-06-10 1989-10-03 Mordeki Drori Disk filter
US4978450A (en) * 1986-02-11 1990-12-18 Mordeki Drori Filtering element
US4935126A (en) * 1986-02-11 1990-06-19 Mordeki Drori Filtering apparatus
US4906357A (en) * 1987-07-26 1990-03-06 Mordeki Drori Filter system having multiple filter elements and back flushing assemblies
US5013461A (en) * 1987-09-18 1991-05-07 Mordeki Drori Regeneration method of filter device having filter aid material and piston apparatus
US5015379A (en) * 1988-03-16 1991-05-14 Mordeki Drori Coiled filter strip with upstream and downstream butt ends
US4906373A (en) * 1988-06-21 1990-03-06 Mordeki Drori Multiple filter elements with movable flushing assembly
US5030349A (en) * 1989-01-12 1991-07-09 Mordeki Drori Filter apparatus
US20060032200A1 (en) * 2002-08-22 2006-02-16 Claes Karlebratt Screen for gases

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