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Publication numberUS1718396 A
Publication typeGrant
Publication dateJun 25, 1929
Filing dateJan 7, 1925
Priority dateJan 12, 1924
Publication numberUS 1718396 A, US 1718396A, US-A-1718396, US1718396 A, US1718396A
InventorsHarry Wheeler
Original AssigneeRaymond Guy Palmer
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Centrifugal pump
US 1718396 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

June 25, 1929.

H. WHEELER CENTRIF'UGAL PUMP Filed Jan. '7, 1925 14 tiorn e y 7 [far/y lf/weler Patented June 25, 1929.





Application filed January 7, 1925, Serial No. 1,077, and in Great Britain January 12, 1924.

This invention has reference to improve ments relating to centrifugal pumps and has particular reference to that type wherein the vanes of the impeller are fixed to one side of a disc and in which the impeller is provided with a central cavity adjacent the pump inlet the liquid beingforced by the said impeller through an outlet disposed tangential to the impeller.

The present invention has for. its object improvements in. this type of centrifugal pump whereby liquids or semi-liquids containing solid, fibrous or pulping matter can be efficiently dealt with without involving a clogging or choking of the pump.

The invention consists of an improved centrifugal pump of the kindhereinbefore referred to characterized by the formation of' the impeller as a single 'vane secured to and extending completely across one face of a rotatable disc and-provided inthe central portion thereof with a section adapted to coincide with the periphery of the central inlet aperture formed in the pump casing.

In the drawings 4 Figure 1 is a side elevation with cover removed, and

Figure 2 is a cross section of a pump constructed in accordance with this invention.

In carrying the invention into effect as shown, a single vane a of suitable width is formed integrally with one side of the disc 6, so that the vane extends across the disc.

Alternatively the vane may be made separate from the disc and secured thereto in any convenient manner.

- curved, for example, as shown and so disthereof located at adistance from the axis of rotation about equal to the radius of the adjacent central inlet aperture 0 in one side (1 of the case e. Preferably an annular extension or lip f is provided'around the in ner side of the inlet aperture. This extension projects slightly into the" pump case,

and is overlapped by the central portion of the vane. It will beseen that the vane d1- vides into two parts the adjacent face of thedisc I) and also-the space swept by the saidvane during rotation.

The case isprovided with a'delivery aperture g in the usual way.

The vane is preferably- The width of the disc and vane, or impeller is made as nearly as is convenient equal to that of the case interior. Vhen in action, the material to be dealth with is de 'livered, or drawn to the centre of the pump and-is discharged by the vane through the outlet aperture.

In the pump shown the disc is rotated by a a s indle Z. A lubricator may be attached at A pump as above described is of extremely simple construction, and. due to the disposition of the single vane extending across the rotary disc entanglement or clogging is ef-.

more efficient manner than obtains when a nultiphcity of vanes are employed, the edge of the vane serving to sever any foreign'matter which tends to clog the operation of the pump. a

I claim An improved centrifugal pump comprismg a casing, inlet and outlet apertures in said casing, a spindle rotatably mounted relative to said casing, a disc concentrically mounted on one end of said spindle and adapted for rotation within the casing, a single Stllp-llke vane of a uniform depth throughout its length equal to the distance between the inner faces of the casingsaid vane being secured to one side of and extending completely across the face of the disc and being wholly contained during rotation within a cylindrical space havin a diameter equal to the diameter of the. 'sc so that the vane during rotation. divides the said space into two distinct and separate sections,' said vane being positioned relative to the axis of rotation of the disc so that the disc is maintained in a state of dynamic balance during rotation, and a central section formed in said vane adapted to coincide with the aforesaidinlet aperture.

In testimony whereof, I have signed my name to .this specification.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2635548 *Dec 21, 1945Apr 21, 1953Brawley Pump CompanyRotary pump
US2646002 *Jul 29, 1950Jul 21, 1953Borg WarnerCentrifugal pump
US5516261 *Jun 10, 1994May 14, 1996Wilo GmbhUnchokable centrifugal pump
US7906068Feb 4, 2004Mar 15, 2011Cooper Paul VSupport post system for molten metal pump
US8075837Jun 26, 2008Dec 13, 2011Cooper Paul VPump with rotating inlet
US8110141Jun 26, 2008Feb 7, 2012Cooper Paul VPump with rotating inlet
US8178037May 13, 2008May 15, 2012Cooper Paul VSystem for releasing gas into molten metal
US8337746Jun 21, 2007Dec 25, 2012Cooper Paul VTransferring molten metal from one structure to another
US8361379Feb 27, 2009Jan 29, 2013Cooper Paul VGas transfer foot
US8366993Aug 9, 2010Feb 5, 2013Cooper Paul VSystem and method for degassing molten metal
US8409495Oct 3, 2011Apr 2, 2013Paul V. CooperRotor with inlet perimeters
US8440135May 13, 2008May 14, 2013Paul V. CooperSystem for releasing gas into molten metal
US8444911Aug 9, 2010May 21, 2013Paul V. CooperShaft and post tensioning device
US8449814Aug 9, 2010May 28, 2013Paul V. CooperSystems and methods for melting scrap metal
US8475708Mar 14, 2011Jul 2, 2013Paul V. CooperSupport post clamps for molten metal pumps
US8501084Mar 14, 2011Aug 6, 2013Paul V. CooperSupport posts for molten metal pumps
US8524146Sep 9, 2010Sep 3, 2013Paul V. CooperRotary degassers and components therefor
US8529828Nov 4, 2008Sep 10, 2013Paul V. CooperMolten metal pump components
US8535603Aug 9, 2010Sep 17, 2013Paul V. CooperRotary degasser and rotor therefor
US8613884May 12, 2011Dec 24, 2013Paul V. CooperLaunder transfer insert and system
US8714914Sep 8, 2010May 6, 2014Paul V. CooperMolten metal pump filter
US8753563Jan 31, 2013Jun 17, 2014Paul V. CooperSystem and method for degassing molten metal
DE1031133B *Apr 15, 1953May 29, 1958Western Machinery CompanyKreiselpumpe
EP0653564A1 *Mar 9, 1994May 17, 1995WILO GmbHNon-clogging centrifugal pump
EP1147321A1 *Nov 29, 1999Oct 24, 2001Smith & Loveless, Inc.Single port impeller
U.S. Classification415/228, 415/206, 416/185
International ClassificationF04D29/18, F04D29/22
Cooperative ClassificationF04D29/225
European ClassificationF04D29/22C3