US1481429A - Flour sifter - Google Patents

Description

Ema 229 H. NAKAGAWA FLOUR SIFTER a; Iii o4 Wa gawa Filed March' 26 INVENTGR Petenteel ainn. ieee HARRY BHAKAGAWA, 01? TANANA,

moon mm.

Application filed Hatch 5263, 13528. Sens Iio. 527,8%,

7'!) i! when) it im/ a conmrn: i lie it known that l, HARRY NAKAGAWA, citizen of the l nited States residing at Tnnann, in the 'lei'ritory of Alaska, have invented new and useful lingn'ovements in Flour Sifters. of'wh-Ech the ioilmving is o specification. My present lHX'OUtlO'R has to do with tion'r sitters ot' the type in which an agitator is oscillated allow; a concave-convex sore-e through the medium oi anoscillotoryhnndle member sonnet-ted with theshntt of the agi- The ohjot of my soi'l invention is to in1- prove the type of fionisitter indicated by the provision of a snnpie and hereinnfte: described and dofinitelyclaimed.

In the accompanying drawings, forming part of this Sp8Q1fiCfltHmZ--- I Figure 1 Is n top plan View -of niy novei 'sifter.

'F s ui'e 2 1s a side eievntion 0t t'he 'same Withn portion of the hody broken 'giwsy.

Figure 3 is a detail of the handle memliiei's. Fignre is a ci'osssection taken through the handle members and the agitator shaft rear end elevation in the plane indicnted hy the line i of Figure 1.

Figure 5 is a detail m-oss section showing "the arrangement of the spring.

Similar numerals of reference designate corresponding parts in all of the views of the drawings Among other elements my novel sitter comprises a cylindrical hody 1 open at its oppositeends. Appropi iotely fixed in the said body Int an intermediate point in the length thereof is e eoncm'o-convex screen .2 of reticulated materiel. Movable to and fro immediately above the concave side of the screen 2 is on oseil'lntory agitator 3 which without afi'ectinir my invention may have any desired number of blades. The said agitator 3 appropriately arranged relative to a shaft 4 so as to assure n. strong eng agement of the agitator with the shaft end the turning; of the former inv concert extended a considerable distance The shott. is

with turningof the latter.

the

hoiy 1 e: f in n ri'idialdire'ction from the Bony, one wquippecl with a spur gear 5.

My no" also or iprises :1 spring 6, s fixed i die memhee and an oseiiletorv h 1 nfid meinhei' '4" no or fomi i'd end .c nosed arm 9 which is arranged n-ongsids of ihe body Q. d is a n'opriately f xed in posi n there- At the outer or re end the fined handle member 7 the sa ie is provided with an inwardly directed zontai enn 10in whieh is jo'uxnsled the 1- 7 end of the shaft l t wiil also he noticed. more that the syn? gen? 5 is arranged immediately adjacent to the inner side of the arm 10. and said arm 10 is provided on its upper edge witha forwardly extend. g lateral ing 11. The oscillatory handle member 8 is pivotelly connected at. 12 to the that inner portion of the handle memhec 7. Al: near: or outer end the said hnndie member 8 is pro vi ti with an inwardly extending arm M. l min 14 is toothed at its underside and mesned with the gear 5, and it is arranged between the {fear 5 and. thohehire mentio'ned h s .1 so as to he gnideci by the latter and held in proper working relation to the gear 5 end Withont interfering: with iffl'QQ reciprocation of the arm 1%. It wiil nlso he noti ed thee the sin] 1% is nnoyided new its inner end with on upstanding pro jei-tion l5 Willili is des :ned to lining up against the hug ll and therehy limitthe out Word movement of the oscillates}; handle memhei' 8 under the action of the spring 3:

within the purview of my invention .oploy any type of spring designed to t sinned hy inward movemen of the oscilietory handle member 8 and So serve the outward movement of the said handle memher 8. l: pr fer, however, to employ a spring of the type shown the said spring which is mnnhered 6 being inter posed and supported between the members 7 and 8. n

In the practical operss 'ion of my novel sittei he manifest that when the handle members are in one hand of the operator and the handle mei'nher 8 is "pressed inwardly the action of the spring- 6 the shaft and the agitator 3 wili e. sharply tnriwd in one diieotionndne to the cooperation ,oi the rack on the arm it the spn' P. 511111 "in Quit; the

the spring 6 will operate to press said handle member outwardly which Wili bring about a sharp turning IUUWEmPIXtoi The shaft -1- aril agitator in rm 7 dircciiou. There form by simply press the handlc momhor. the operator is enabled to sift as much fiour other sui'istanrc through tho screen and this without cnta'ling movement in any rection of the body 1 and without the an anco oi the other hand. such other hand ing left tree lor 1hr stirring of die mixture, into which the flour or other substance is discharged. lit Will be apgiiarcui from the foregoing that my novel sitter is extriani-rly simple and ii'icxpcnsire in construction and yet is highly etiicirnt in operation and is not; liable to get, out of order under ordinary usage.

i I have entered into a detailed dcscription of the construction and relative arrangement, of the parts embraced in the nrsent and. preferred enjibodin'ieni oi my invention in order to impart :rfull. clar and exact understanding of tho said ciuhodinient. I do not desire. howcrer, to be understood as confining myself to 'tho specific construction and relative arrangement oi? parts inasmuch as in the, futiire 'n'actice oi? the invention various changfrs and modifications may be. made such as within the scope of my invention as defined in my appended claims.

/Having described my invention, what i. flaim and desire to secure by Letters-Pat;-

1. A; flour sitter comprising a cylindrical body, a concavo-convex screen carried in said. body, a handle member having an upright arm its inner end fixed to the said body and also having at its outer end an inwardly directed lateral arm on the. upper edge of which is an inwardly extending guide lug, shaft journaled in the body and in the said arms of th s fixed handle. inei'nber. an agitator mounted on and arranged to turn with who shaft and also arranged to turn in the and in close Pl'OXlIIllll) to the upper side of "the screen a spur gear nixed on said shaft and arranged at the inner side of and adjacent to the outer arm of tho fixed handle member. an oscillatory handle n'ieniher pin otally connected to the lined handle member at a point adjacent to the body and ha\ inn at, its outer end an inwardly directed rack bearing arm interincshed with the said spur goal; said arm being interposed and movable betn'cen the said spur gear and the said Qillih'lillji and havinn'a projection at its inner cud to n'iug up against the guide lag and limit outward niovei'ncnt of the oscillatory handle member, and a spring maintained between the handle members.

2. In a flour Sifter the combination of a cylindrical body. a conca -ionrex screen therein, a shaft journaled in the body, an agitator arranged in the body and mounted to turn with the shaft. a spur gcar fixed on tho shaft, a handle member fixed to the body and having a lateral inwardly extend-- ing arm on which is a guide lug, an oscillatory handle member pivotally connected to the i'lfictl handle member and having an inwardly directed arm intcrposcd,bctwcon the guide lug and the spur gear and ban a rack intormeshe-d wi h the spur gear and also havinig; a projection adapted to bring up against the guide 1111' and limit outward movement oi the oscillatory ha ndie member, and a spring associated withihe handle members and arranged to he ten-sinned by inward inoren'ient ofthe oscillatory handle nicn'ibci: v

' In testimony whoroof l atlix my signature.

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