US1438884A - Flour sifter - Google Patents

Description

G. L-ADELMAN.

noun SlFTER APPLlCATION FILED MAR-11,1921.

Patented Dec. 12, 1922.

ATTORNEY Dec. l2, i922.

lhtfittddl '93 we a ir- 1 k i w: y m aw r it i r .t 6

GEORGE L. ADELMAN, OF BEARDSTOWN, ILLINOIS.

" FLOUR, SIFTEB.

Application filed March 11, 1921. Serial No. 451,461.

To-aZZ whom 2'25 may concern:

, be it Known that I, Unonon L. Autumn, a citizen of the United States, residing at neardstowin in the county of Cass and State of llli1ioi.s.l1ave invented new and useful Improvements in Flour Sifters of which the following is a specification.

This invention relates to flour sitters and more particularly to a sitter embody 1.0 ing superposed sifting elements- In making cakes and some types of pastry it is necessary to sift the flour a number of times and it is an object of this invention to provide a sifter; embodying a plurality of sitting elements or screens disposed in superposed arrangement whereby the flour may be sifted more than once by a single operation of the sifter thereby materially decreasing the amount of work necessary in properly sifting the flour.

A further object of this invention is to provide a flour sifter in which a single rotating rod is provided which extends 'axi' ally of the container and carries agitators, one positioned in close proximity to of the screens the said agitators being composed of a plurality of arms of flattened material bowed to conform to the cuiwziture of the screens but attached at spaced points to the operating rod to provide rigidity.

A. further object of this invention to provide a sitteras specified wherein the operating rod is rotatably supported and l'u'accd by suitable diagonal braces and has a. bearing plate upon its lower end which rests upon the upper surface oi": the lowermost screen.

Other objects of the invention will appear in the following detailed description and in the accompanying drawing wherein:

Fig. 1 is a vertical section through the improved sifter.

Fig. 2 is a detailed view of one of the agitators.

Fig. 3 is a detail section taken on the. line 3-3 of Fig. 1.

Referring more particularly to the drawing the improved flour sifter comprises a container 1 of the usual construction, i. e., cylindrical in shape and having its upper and lower ends open. A handle 2 of any approved type is carried by the container. The container 1 is formed of an upper section 3 and a lower section 4 and the upper edge 5 of the lower section 4 is offset outwardly to engage about the outer surface of the lower edge of the upper section 3 while the engaging portions of the upper and lower sections 1 are provided with outst-rucl; registering portions 6 spaced circumferentially thereabout to prevent accidental disconnection of the two sections. 1

The agitator carryingoperating rod 7 of the Sifter extends longitudinally throng the container 1 at the central axis thereof and is braced intermediate its ends by diagonal braces 8 and 9, each of which is formed of a length of wire having convolutions 10 through which the rod 7 extends. The rod 7 has the usual crank handle 11 formed upon its outer end to facilitate its manual rotation and it carries agitators 12 and 13. which are positioned in close proximity to the screens 14 and 15 respectively.

The screen 14 is carried by the upper section 3 while the screen 15 is carried by the lower sect-ion 4. The screen 14 is provided with a central opening through which the rod 7 extends and the rod 7 has an arcuate bearing plate 16 attached to its lower end which bears against the upper surface of the screen 15 and forms a bearing for the lower end of the rod 7 against the screen 15.

The agitators 12 and 13 are similar in construction, eachcomprising a plurality of armsl'? formed of flattened. material, preferably of metal. The arms 17 have circular portions 18 formed upon their lower ends which. are provided with axial openings 19 through which the rod 7 extends. A binding plate 20 is provided having circumferentially spaced ears 21 formed thereon which are bent to extend across the perimeters of the circular portions 18 and clip over against the under surface of the lowermost circular portion 18, as clearly shown in Fig. 3 of the drawing. The upper ends of the arms are perforated as shown at 22 to receive the rod 7 therethrough thereby providing relatively rigid agitators for agitating the flour and causing it to pass through the screens 14 and 15. The arms 17 are bent to conform to and lie in close proximity to the respective screens 14 and 15.

The removable connection of the screen sections 3 and 4 will permit the latter section to be disconnected for facilitating cleaning of the sitter.

It is, of course, to be understood that the invention may be constructed in various other manners and the parts associated in different relations and, therefore, I do not desire to be limited in any manner except as set forth in theclaims hereunto appended.

Having thus described my invention What I claim is:

1. In a sitter, a container, superposed sifting screens carried thereby, agitators disposed in close proximity to said screens, an operating rod for said agitators extending longitudinally through the center of gagement.

2.111 a siit'er, a container; superposed sifting screens carried thereby, agitators dISPOSGd 1n close proximity to said. screens,

an operating rod for said agitators extend ing longitudinally through the, center of said container and through the uppermost of said screens, a bearing disc on the lower end oi said rod and engaging the upper surface of the lowermost screen, each of said agitators composed of a plurality of arcuate arms having their upper ends connected to said rod; circular portions on the lower ends of said arms and disposed in. superposed engaging relation, and a binder for binding said circular portions in engagement; said container composed of detachably connected sections.

3. An agitator for Sifters comprising a vertically extending operating rod, a bean ing plate secured to the lower end of the roch U? shaped arms having holes in their ends for receiving therethrough said rod, and a binding plate mounted on the rod and having ears bent around certain ends of the arms for connecting the arms together onto the rod directly upon said bearing plate.

In testimony whereof I afiix my signature.

GEORGE L. ADELMAN.

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