US1430276A

US1430276A - Automobile fan

Info

Publication number: US1430276A
Application number: US507647A
Authority: US
Inventors: Ernest H Arnold
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-10-14
Filing date: 1921-10-14
Publication date: 1922-09-26
Anticipated expiration: 1939-09-26

Description

E. H. ARNOLD. AUTOMOBILE FAN. APPLICATION FILED OCT. IIL-192|.

Patented Sept. 26, 1922.

Patented Sept. 25, i522.,

entrar erntenD ERNEST II ARNOLD, OE CLEVELAND, OHIO, ASSIGNOR TO HENRY M. STRONG, 0F CLEVELAND, OHIO.

AUTOMOBILE' FAN.

Application filed Gctober 14, 1921. Serial No. 507,647.

To all @07mm t may concern:

Be it known that l, ERNEST H. ARNOLD, a subject of the King of England, resident of Cleveland, county of Cuyahoga, and State of Ohio, have invented new and useful improvements in Automobile Fans, of which the followingl is a specification, the principle of the invention being herein explained and the best mode in which have contemplated applying that principle, so as to distinguish it from other inventions.

My invention relates `to automobile fans, its object being to produce a fan which will be efficient in the performance of its function, and which may be produced in an economical manner.

The said invention consists of means hereinafter lfully described and particularly set forth inthe claims. More specifically, my invention consists of a fan whichis made of two parts,'a blade member and a hubmember, the major portion of the hubmember consisting,` of an integral structure drawn from a disk of sheet metal, and provided with bushings at its ends, the one end of said hub-member being shaped to form a pulley and the other end being secured to the blade member, all as will hereinafter be more fully described.

The annexed drawing and the following description, set forth in'detail certain means embodying my invention, the disclosed means, however, constituting but one of the various mechanical forms in which the prin ciple of the invention may be applied.

In said annexed drawing:

Figure l represents a front elevation of a fan embodying my invention, and mounted upon a suitable journal rod.

Figure 2 represents a section taken upon the plane indicated by line :ll-ll in Figthe blade member thereto, and prior to the application of the end plate.

Figure 7 represents a fragmentary aXial section of a hub-member, showing a modified construction thereof.

The illustrated embodiment of my invention comprises two major elements, namely the blade member l, and the hub-member 2. The particular blade member shown includes four

blades

3, 3, radiating from a central disk-lilre portion 4t, and formed at its central portion with a circular opening 5. Suitable struck-up ribs f'are formed to stiflen the blades, as will be readily understood, and the entire structure just described, in this particular, instance, is shown to havebeen struck Fup from a single sheet of metal so as to form one integral structure.

The vhub-member 2 consists of the main hub-portion and the end disk. The main hub'member is drawn from a disk of metal by means of suitable dies intovv Vthe form shown in Figure 6, in which one end forms a pulley portion 7 and the other end a portion 8 of reduced diameter.4 A .fold 8 forms a flange at one end ofthe pulley portion, and the shoulder 9 is formed at the other end of said pulley portion, from which shoulder projects the cylindrical end portion ll. The extremity of the portion 8 is of further reduced diameter, its outer dimension being substantially equal to the diameter of the opening 5 in the blade member. A struck-up plate l0, Figures i and 5, is provided which has an outer diameter equal to the interior diameter of the cylindrical end ll of thepulley member, so that said plate will 'lit within the latter, as

shown in dotted lines in Figure 6. After this plate has been so inserted in the pulley portion, the end ll thereof is spun around the lperiphery of the disk, as shown in Figure 2, whereby such plate isl securely fixed and forms ythejouter end of the pulley. I prefer to provide a 1ieripheral depression l2 for the reception of the metal of the portion ll so that the end face of said pulley may be perfectly flat, as also shown lin Figure :2. The central portion of the plate l() is provided with an opening 18 surrounded by a flange 14.

The reduced extremity of the end of reduced diameter passes through the central pening 5 in the blade member, and. is spun outwardly and around the exterior of the metal of the blade portion which surrounds said central opening, as shown in ifigure 2, vvherebv the blade portion is secured in a fold of the hub-member and securely fixed therein.

The interior diameter of the openings in the two ends of the hub member are made equal to each other and in each of these openings is driven a suitable bushing la', which provides the bearing for the journal rod l5 upon which the fan is mounted.

The above construction may be slightly modified, as shown in Figure 7, wherein I have shown an end plate l0 which, instead of being enclosed Within a. fold formed by the extremity of the main hub-portion, itself forms a fold, as shown, and encloses the flange 9 of the pulley.l as Will be readily understood.

By constructing the main portion of the hub-member as described, and especially by leaving the hub end thereof open and aftervvard closing it With a separate plate, ll am enabled to insert upon the interior of the hub, ball or roller bearings which may at times be desirable substitutes for the bushings la.

that l claim is:

l. A hub-member for an automobile fan comprising an integral seamless sheet of metal shaped to form a pulley portion at one endvand a portion of different diameter from that of said pulley portion, at the other end; together with a separate end plate secured to said pulley portion.

2. i hub-member for an automobile fan, comprising an integral seamless sheet of metal shaped to form a pulley portion at one end and a portion of different diameter from that of said pulley portion at the other end; together With a separate end plate forming the outer end of the pulley; the outer end of said pulley portion and the said plate being connected b-y means of a fold formed on the one and closing the peripheral portion of the other.

3. .er hub-member for an automobile fan, comprising main part drawn from an integral sheet of metal to form a pulley portion at one end thereof and a portion of reduced diameter at the other end thereof; said pulley portion being formed at each end thereof with a flange; and a separate plate forming the outer end of the pulley and having its peripheral portion in engagement with the outer flange of said pulley portion.

4.-. A hub-member for an automobile fan, comprising a main part drawn from an in* tegral sheet of metal to form a pulley portion at one end and a portion of reduced diameter at the other end; said pulley portion having a fold at the inner end thereof forming a flange and formed with a ange at the outer end thereof; and a separate plate forming the outer end of the pulley and having its peripheral portion in engagement with the outer flange of said pulley portion.

5. An automobile fan comprising the combination of a blade member, a hub-member, the latter comprising an integral seamless sheet of metal shaped to form a pulley portion and a portion of reduced diameter, together With a separate end plate secured to said pulley portion; and bushings seated in the end of said portion of reduced diameter and plate respectively; said portion of re duced diameter being secured in a central opening formed in the blade member,

G. An automobile fan comprising the combination of a blade member; a hub-member, the latter comprising an integral seamless sheet of metal shaped to form a pulley portion, and a portion of reduced diameter, to gether With a separate end plate secured to said pulley portion; and bushings seated Yin the end of said portion of reduced diameter and disk respectively; the extremity of said portion of reduced diameter projecting` through a central opening formed in the blade member and turned outwardly on the exterior thereof so as to form a fold envel oping the peripheral portion of the blade member surrounding said central opening.

7. main member of a fan-hub, consisting of a seamless drawn sheet metal tubular element having a pulley-portion at one end and a portion of reduced diameter at the other end, a shoulder at the outer end of the pulley portion and a flange at the inner end of the latter, the outer end of the vertical portion being still further reduced, and the outer end of the pulley-portion'having a cylindrical portion projecting from said shoulder.

Signed by me this l2 day of 0ctober, 1921.

ERNEST H. ARNOLD.