US1669748A - Pin wheel - Google Patents

Description

May 15, 192& 1,669,748

G.G.GREGERI PIN WHEEL Griginal Filed May 23, 1925 [Aim/V7012 George G. Greger ATTORNEY.

Patented May 15, 1928.

QFFIQE GEORGE e. omens, or 13mm, men-isms.

PIN WHEEL.

Continuation or application Serial No. 32,303, filed Hay,23, 1925. This application filed Novemb er 29,

1926. serial No. 151321.

This invention relates to pin. Wheels, 'Whirlers, and air propelled devices adapted revolve or spin' about an axis by action ofair currents againstthedevicesorby said devices being'quickly moved against the air to produce currents of air against or through the devices. The present appliz tion is a continuation of my previous application Serial No. 32,309,filed May 23, 1925. Myinventionaims'to provide, as a new articlerof manufacture, a pin wheel or Whirler thatmay be usedby'juveniles for amuse rnent purposes or may be used by adults for advertising purposes. "Asanamusementdevice it'will present a colorful appearance, and in oneforinmay be a pinwhelwithin a pinwheel Withth'e Wheels arranged to revolve iniop posite directions and thus aiford an attractive"appearance compared to the -nsualsingle pin Wheel. "As an'advertising device, parts of the pin Wheel may carry various-kinds of printed matter Which-may be observed when the device is stationary. invention further aims to provide :a ginvvheel or whirler embodying a seriesof hues and baffles or deflectors which cooper-ate in using a maximum volume of air for causing rotation of the pin Wheel, the blade arrangement being such that :air may be deflected from "one blade to another and in this manner ahigh speed iinpartedto the pin Wheel. :My invention will-behereinafter specifieally described andthen claimed, and referenc will now be had to the drawing wherein Figured. a' persywctive view of one/form pinvtheel or whirler; r

"Fl". Elisa plan oif alblank from which a to "Wheel may be evolved; o

*Fi 3 is a vertical section of the pin Wheel showing the "relative arrangement er parts-thereon;

.Fig. 4"is a perspective view of another Fig. 5 is'a fplan of assembled blanks "from Wh'ich i is jma-de the pin/Wheel or "Whii-l'er 'shdtvn in JFi'g. '4, and

6 is across sectional View oftwo i0 blanksassembledfor the formation of the pin'fwheel or Whirler shown'in-Fig; 711.

The reference numeral '1 denotes a pin shaftor other thin rigidmeifiber providing spacers or various kinds of ornamental members. i

Considering that type of wheelshown in F gs. 1 to 3 inclusive, each wheel is made from aisingle blank ofpaper,- celluloid, metal or any other light and durable material that can be cut, stamped andben'tto a desired configuration. The material may be any color andsusceptible-to "having printed matter placed -'thereon. Each heel blank'has a center portion 5 and a divided peripheral edge 6, theperipheral'edge being divided bya plurality of equally spaced and substantially radially disposed incisions 7 Which extend inwardly a short distan'ceto meet curved slits 8 extending inwardly from the peripheral; portions'oi the blank towards thOCGlltGI' portion 5 ofthe said blank, the-inner ends of said slits terminating at sharplyclurved slit/s9 at the inarginalportiOnS of a the blank center. Fm" a 'four -bladed Wheel there will be four sets of the incisions'and slits sothat four blades 10 will be iorined,

with each blade "tapering inwardly "fI'Ol'Il' its inner extremity to its outer extremity which is representecl by a blunt tip '11. Ea ch blade has-its outer-extremity formed by a-peripheral-edgefi of the'blank'and one of the slits 8, aird'i'nterinediatethe ends of-each blade dge 6 and the incision 7.

'lphe center'portion 5 oi:the'blank'1s a is an outer bar-b 12fer1ned by the peripheral tured; as at 13 a-nd the blunt tipll of each :bladeis apertured, as-at 14'. (The blades are adaptedtobe sprungfroin th-e plane of the blank to on-eside thereof and the 'blunt tips of the'blades brought into -si-1perposed rela tionsso that the apertures'lt of the blades will be in matched relation and co-axially of the aperture 13. For holding the blnnt blade tips together an eyeletor tubular rivet 15 may be employed and \vhen the blades havethe outer ends thereof connecteda parabolic configuration is imparted to said 'bla deswit-h each blade having gradual sloping contour afi'ording jan uin cline'd surface and an outturne'd' edgefioni the centenpor' tion 5 of the blank to the connected tips of the blades. lVith the blades gathered so that the tips thereof are connected and substantially at a right angle to each other, there will be a space between the blank portion 5 and the connected tips 11. It is in this space that a smaller, similarly formed, wheel 16 may be placed, together with ballles or deilectors 1.7 and 18, and a spacer 20. The baflies or deflectors 17 and 18 may be in the form of disks having center apertures and the spacer 20 may be in the form of a sleeve or tubular member. The ballle 18 may be larger than the baiil-e 17 and placed in the inner or smaller wheel 16. The spacer 20 may be placed between the center portion of the inner and outer wheels, thus properly centering the inner wheel relative to the outer wheel so that there will be no frictional contact between said wheels. The blades of the inner wheel may be formed the reverse of the blades of the outer wheel so that the inner wheel may be driven in an opposite direction to that of the outer wheel and thus lend novelty and attractiveness to the structure. Air impinging against the small bafile 17 will be deflected outwardly against the tip portions of the blades and air impinging against the large balile 18 will be deflected outwardly to encounter the blades of the inner wheel 16 and from these blades to the blades of the outer wheel. It is on the bafiles or deflectors 17 and 18 that printed matter may be placed, for advertising purposes, and it is apparent that with these baflie members of different colors and the inner and outer wheels made of different colors that a very attractive pin-wheel or whirler is formed.

Reference will now be had to Figs. 4, 5 and 6 of the drawings showing another form of pin wheel or whirler wherein the wheel is made from two blanks, designated 21 and .22. Each blank is made similar to the blank shown in Fig. 2 and the blanks are placed in superposed relation with the blades of the lowermost blank extending into the slits of the uppermost blank, so that the blades 10 of the lowermost blank 22 will overlie approximately one-half of the blades 10 of the uppermost blank 21. This will place the inner curved edge of each blade of one blank approximately parallel to the inner curved edge of the adjacent blank, and with the blades of the two blanks in overlapped relation, as brought out in Fig. 6, the two blanks are interlocked so that one blank cannot become accidentally displaced relative to the outer blank. Looking at either side of the assembled blanks the blades of each blank appear and the apertured tips of the blades are adapted to be gathered together with the blades co-axially of the apertures 13 of said blanks, so that the wheels, one within the other, may be assembled on the pin 1 with ballies 23 and 24, centrally of the wheels. The ballle 24: may be radially corrugated and a spacer 25 mounted on the pin 1 between the bailles and wheels. In bending the interlocked blades a spiral formation having an inclined surface is imparted thereto, as clearly brought out in Fig. 4 and it is the multiplicity of blades that contributes to easy rotation of the wheel in a small breeze, because all surfaces of the blades are effective for propelling purposes. With a blank colored dillerent from an ad j acent blank an attractive pin wheel or whirlcr is produced and by using proper colors rotation of the wheel will cause the colors to blend and produce a desired effect.

From the foregoing it will be observed that one form of pin wheel has four parabolic outer blades and four parabolic inner blades, with one complete wheel in the other and independent thereof, while in the other form there are two wheels interlocked together so that the blades of one wheel will cooperate with the blades of the other wheel in providing a complete eight bladed wheel or whirler having blades with inclined surfaces. I have illustrated a preferred way of producing the blades of each blank, but it is obvious that in slitting each blank the slits may be sinuous, tortuous or irregular so as to produce scalloped or otherwise shaped blade edges which will lend a degree 0fornainentation to the pin wheel or whirler. In that form of pin wheel shown in Fig. 1, the barbed portions of the inner wheel may be dispensed with to avoid any interference of its rotation with that of the outer wheel, and it is obvious that the deflectors or bafiles may have edges and surfaces contributing to the ornamentation of the device.

I attach considerable importance to the formation of a pin wheel from a circular blank provided with curved slits adapted to provide curved or ribbon-like blades. By reference to Figs. 2 and 5 it will be noted that the inner ends of the slits are equally spaced relative to one another and to the center of the blank. The outer ends of the slits are equally spaced relative to one another and the spacing is such that the slits may be said to overlap, that is, the intermediate portion of one slit is opposite the ends of adjacent slits. Or the arrangen'lent may be considered as the outer end of one slit overlapping the inner end of an adjacent slit. I

As a result of this arrangement one blade will overlap an adjacent blade and extend to practically the middle portion of the outer edge of said adjacent blade. This is essential so that when the tips of the blades are i brought together the curved edges of the blades will present a rosette configuration when the pin wheel is viewed in front eleration. This rosette configuration cannot be conveniently attained from blanks unless the same are circular, as shown in Figs. 2 and 5.

It is thought that the construction of my pin Wheels or whirlers will be apparent without further description, and while in thedrawing there are illustrated the preferred embodiments of my invention, it is vto be understood that the structural elements are susceptible to such variations and modifications as fall within the scope of the appended claims.

What I claim is:

1. In a pin wheel, a pin, a wheel made from a blank provided with curved slits to form a plurality of tapering blades, said wheel having its central portion mounted on said pin with the blade tips brought together on. said pin in spaced relation to the central portion of the wheel blank, a baffle on said pin resting against the edges of the gathered tip portions, a spacer on said pin to support said bafile and to hold said baflle against said gathered tip portions, and a disk on said pin at the inner end of said spacer and within said Wheel.

2. In a pin wheel,-a pin, and a Wheel made from a circular blank provided with curved slits extending from the periphery towards the central portion of said blank and diverging gradually from the periphery of the blank to form a plurality of tapering blades, said Wheel having its central portion mounted on said pin with the blade tips brought together on said pin so that said Wheel presents a rosette configuration circular in front elevation. V

3. As an article of manufacture, a pin wheel adapted to revolve about a pin, said wheel being formed from a circular blank provided with curved slits extending inwardly from the margin towards the central portion of the blank and diverging gradually from the periphery of the blankto divide the blank into curved blades.

In testimony whereof I aflix my signature.

GEORGE G. GREGER.

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