Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS748038 A
Publication typeGrant
Publication dateDec 29, 1903
Filing dateJul 28, 1902
Priority dateJul 28, 1902
Publication numberUS 748038 A, US 748038A, US-A-748038, US748038 A, US748038A
InventorsJohn H Ayers, Almond B Ayers
Original AssigneeJohn H Ayers, Almond B Ayers
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Centrifugal liquid-separator.
US 748038 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

No. 748,038. PATENTED DEC. 29, 1903.






UNITED STATES Patented December 29, 1903.




SPECIFICATION forming part of Letters Patent No. 748,038, dated December 29 1903. Application filed July 28, 1902, Serial No. 117,270. (No modelJ To aZZ whom it may concern: Be it known that I, JOHN HxAYERS, a citizen of the United States, residing at Lansing, county of Ingham, State of Michigamhave i'nvented a certain new and useful Improvement in Centrifugal Separating Machines; and I do declare the following to be a full,clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings,

which form a part of this specification.

This invention relates to centrifugal separating-machines, and has for its object improvements in that class of separating-machines in which a compound liquid is sepadensities and in which the separated liquids are drawn away into separate ordiderent re thrown by the centrifugal action to the outunder the discharge-orifices et is fitted the floor or bottom part 5 of a chamber, into side of the bowl and the lighter constituent is crowded to the more central part of the bowl and the two may be drawn off separately into separate receptacles; butif the bowl be a simple bowl without a partition or diaphragm either the rotation must be kept up for a long period of time or the separation is not completed, and if it be desired to make the operation continuous by feeding into the bowl additional liquids to take the place of the separated constituents drawn olf from time to time or continuously drawn OK then either the feed and consequent delivery must be slow or some adjuncts must be added to the structure to prevent the heavier part of the subsequently-added material from carrying out and holding out some part of the lighter constituent which is desired to have separated out from the heavier constituent; and it is such an adjunct to aid in the work that forms the object of this invention.

In the drawings, Figure 1 is a vertical section of a complete separating-machine. Fig. 2 is a cross-section of the adjunct plates or bafile-plates. Fig. 3 is a cross-section at the ducing rapidrotation thereof.

.bottomof the-feedtube by which the compound. liquid is fed into the bowl.

Isuitable fixture, and B indicates a rotatable shaftjou'rnaled through the casing Aand provided with any suitable means for pro- The shaft B is vertical, and on its upper extremity inside the casing A is fixed a bowl or chamber 0,

, ways 3, leading to outlet nozzles or months 4. rated into its constituent liquids of different I that form outlets from the bowl, and the passages lead from near the outer walls upward and toward the center to the discharge-orifices 4.

The bowl and the cover rotate together, and

which liquid passing from the bowl through the passages 3 is caught and from which the liquid is carried through the spout 6 to any suitable receptacle.

Inside the bowl are fitted two sets of bafiieplates, which will be described more at length hereinafter, and inside the baffle-platesconcentric with the bowl is a vertical tube 7, open at the top, where it extends into a portion through what may be called the plug 8 at the upper end of the cover 2.

The tube 7 revolves with the bowl, and at its bottom end it is provided with openings that lead intothe bowl. Preferably there is near its bottom end a chamber 9, the upper or ceiling surface of which is provided with a 5 number of holes 10, through which liquid running down throughthe pipe 7 into the chamber 9 may escape upward into the in- ;terior of the bowl.

Inside the cap, which is mulates when the heavier liquid gathers at the outer zone. There is an opening 11 through the plug, and through this opening the lighter liquid is forced upward and delivered into a chamber having a bottom 12, and from this it is delivered through spout 13 to any suitable receptacle. A funnel 14 rests above the cap, with the spout of the funnel leading into the plug in register with the tube 7. The funneldoes not rotate, but is held fixed to the stationary part of the machine, and the stationary parts are all supported on the casing A or on one another above the casing A.

The baffle-plates placed in the bowl and substantially concentric are preferably made in two or more series and are preferably made from sheet metal or thin metal, each segment being made of a body part 17 and two wing parts 18 and 19, bent at angles such that the wing parts of two adjacent sections shall engage closely together, and a number of the sections properly engaged together will form a regular polygon.

That part which forms the side of the polygon (the part indicated at 17in Fig. 2) is cut in slits that run across the face of a section, and at the cut the material on one side of the cut is bent and forced outward, giving to each part of the section which lies between two adjacent cuts a direction which is oblique to the original or general course of the surface of the section.

When the segments of one set of baflieplates are assembled and the wing-pieces 18 and 19 fastened together, so that the wingpiece 18 of one engages the wing-piece 19 of an adjacent section, the chamber produced is polygonal, with wings projecting radially. A second set of baffle-plates, similarly made and of sufficient size to engage over the first, but otherwise similar in all respects, is placed outside the first polygonal structure, and the two sets of baifle-plates are insertedin the bowl and the wings of the outer polygonal structure engage closely against the sides of the bowl, and there are now formed in the bowl a number of chambers of substantially trapezoidal horizontal cross-sections, and there is communication through the wall from the center outward through the holes or slits that were cutin the sections,but which are each guarded by the obliquely-arranged portions of the metal, that has been forced outward in the way described. This causes the liquid in its travel outward under centrifugal force to travel downward in order to pass the obstruction, and the lighter material is caught or retained, while the heavier material, owing to its tendency to travel faster, passes outward and the separation is more complete than it would otherwise be. The heavier of the two liquids gathers in the outer series of chambers, and as it accumulates it passes out through the opening 3, through the opening 4, and through the spout 6. The lighter material rises and passes through the passage 11 into the receptacle having the bottom 12 and through the spout 13.

What I claim is 1. In a centrifugal separating-machine, a baffle-plate composed of sheet metal provided with horizontal slits and with the metal be-.

tween each pair of slits bent at an angle to the plane of the plate, substantially as described.

2. In a centrifugal separating-machine, a plurality of baffle-plates provided with wings bent to enable the baffle-plates to assemble in a regular polygonalform, and having each plate provided with horizontal slits and with the metal between each pair of slits bent at an angle to the plane of the plate, substantially as described.

3. In a centrifugal separating-machine, a plurality of baffle-plates arranged concentric and provided with passage-ways leading diagonally from above downward and from inside each plate through the plate to the outside thereof, substantially as described.

4. In acentrifugalseparating-machine, the combination of a bowl, and means for feeding liquid thereinto, a set of baffle-plates arranged in polygonal form provided with wings and with horizontal slits between the wings and with the metal between the slits bent at an angle to the plane of the plate and with its lower edge projecting beyond the upper edge to produce a downward movement of the liquid passing therethrough, substantially as described.

5. In a centrifugal separating-machine, in combination with a bowl, a plurality of baffle-plates arranged in concentric order with chambers between said plates and with open ings through the walls of said chambers, the metal between the openings being bent at an angle to the plane of the plate and having its lower edge extending radially outward farther than its upper edge, whereby it causes a downward flow of liquid passing through said openings, substantially as described.

6. In a centrifugal separating-machine, in combination with abowl, a set of baffle-plates spaced from the outer wall by ribs running from the baffle-plates to the wall, and with openings through the baffie-plates, the metal between the openings being bent at an angle to the frame of the plate and having its lower edge extending outward farther than its upper edge, whereby it causes a downward flow of fluid passing through said openings, substantially as described.

In testimony whereof I sign this specification in the presence of two witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2622794 *Sep 16, 1948Dec 23, 1952Sharples CorpCentrifugal separator
US6736768 *Nov 2, 2001May 18, 2004Gambro IncFluid separation devices, systems and/or methods using a fluid pressure driven and/or balanced approach
US7094196Mar 29, 2004Aug 22, 2006Gambro Inc.Fluid separation methods using a fluid pressure driven and/or balanced approach
Cooperative ClassificationB04B2005/0464