US1191040A - Fan-wheel. - Google Patents

Description

G. F. SHERWOOD.

FAN WHEEL.

APPLICATION FILED NOV. 6. I915.

1 9 1,040. Patnted July 11, 1916.

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FAN-WHEEL.

Specification of Letters Patent.

Patented July 11, 1916.

Application filed November 6, 1915. Serial No. 60,056.

To all whom it may concern Beit known that I, Gnonen F. SHERwoon,

a citizen of the United States, and a resi dent of Jacksonville, in the county of Duval and State of Florida, have invented a new and useful Improvement in Fan-Wheels, of

' which the following is a specification.

My invention is an improvement in fan.

wheels, and the invention has for its object to provide a wheel of the character specified that will be reversible and interchangeable and free from projections of any character, as for instance, rivets or lugs that might come in contact with the material to be handled andwhich can be reversed to com pensate for wear and to insure that the opposite sides of the boaters will wear evenly and uniformly.

In the drawings :Figure 1 is a side view of the improved wheel, Fig. 2 is a section on the line 2-2 of Fig. 1, Fig. 3 is an enlarged detail perspective view of a section through 4 1s a v1ew 1n the plane of the hub, and Fig. the wheel of a modified construction.

The present embodiment of the invention comprises a hub 1, which is adapted to fit on the shaft 2, and to be secured thereto in any suitable manner, as for instance, by means of a key 3, which engages registering grooves 4 and 5 in the hub and the shaft respectively, and a set screw 6 is threaded through the hub at the groove 4 into engagement with the outer edge of the key to prevent displacement of the key. 7

The hub is provided with a series of pairs of parallel laterally spaced lugs 7 and with marginal flanges 8, which are integral with the ends of the lugs and with the hub. These flanges 8 are spaced apart from each other and they are of the same width or radial depth as the lugs 7 A pair of rings 9 is provided, the rings being coaxial relation with respect thereto by means of the blades to be later described, and the rings are tapering or frusto-conical as shown. The rings are oppositely arrangedconverging toward the periphery of the wheel and the blades extend from the peripheries of the rings to the hubs.

Each blade is formed from a sheet of material doubled upon itself to form spaced members or leaves 10, and the double connection 11 between the leaves of each .blade or vane is flush with the peripheries of the rings 9. The side edges of the leaves 10 are with the hub and held in rigid ing mills, box,

or in fact with any machine where refuse "is tobe removed by suction and exhaust shaped to fit between the rings 9 as shown more particularly in Fig. 2, that is, each of the said leaves 10 is approximately quadrilateralv in form having two long sides of equal length and two short sides of equal length. The rings 9 are inclined at the same angle and from the double portion 11 the leaves of each blade or vane diverge slightly from each other toward the hub, and the free end of each of the said leaves 10 has a lug 13, which is received between a pair of lugs 7. The space between each pair of lugs 7'-1s suflicient to receive two lugs 13 and the lugs 13 of the adjacent leaves of adjacent blades are secured together by rivets 14, as shown, the said rivets being passed through registering openings in the lugs and headed on opposite sides of the lugs, and the inner faces of each pair of'lugs 7 are recessed as indicated at 15 to receive the heads of the rivets.

The side edges of the leaves are secured to the rings 9, by means of laterally extending flanges 16 on the short sides of the leaves. These short sides are beveled to fit between the rings 9 and rivets 17 or the like are passed through the flanges and through the rings and are headed on opposite sides to hold the rings to the blades. v

Since each face of the wheel is exactly alike, the rings 9 being similar'in every respect and each complete blade or vane composed of the two leaves 10 being like every otherblade or vane, it will be evident that the wheel may be run in either position. It

may be run forward or backward with the same facilit and it may be reversed on the shaft since it is a matter of absolute indifference as to its relative position with respect to the shaft.

' The improved wheel is especially adapted forhandling shavings and dust from planfurniture and shoe factories portion of the wheel consisting of the elements 9, 10-11-13 will be set up or connected together, and the hub 1, the lugs 7 and the rings 8 will be cast around the lugs 13 and the rivets 14.

In Fig. 1 there is a slight divergence from the form shown in Figs. 1 to 3, in that the leaves 10 are slightly curved radially of the wheel, and they are arranged with their convex faces adjacent. It is obvious that the blades may be plane as shown in Figs. 1 to 3 or slightly curved as shown in Fig. 4 or deeply curved if desired or thought necessary.

I claim 1. A fan wheel, comprising a hub, a pair of oppositely arranged rings concentric with the hub and tapering or frusto-conical and arranged with their large ends inward, and a series of substantially V-shaped blades arranged in spaced relation and connecting the rings with each other and with the hub, each blade being formed from sheet metal doubled upon itself to form a pair of leaves diverging from the integral connection at the peripheries of the rings toward the hub, the inner ends of the leaves of each blade being secured to the inner ends of the adjacent leaves of adjacent blades, the

' hub having pairs of radial lugs spaced apart to receive a pair of superposed blade lugs between the said pair of hub lugs, the hub having marginal radial flanges integral with the ends of the radial lugs.

2. A fan wheel, comprising a hub, a pair of spaced rings coaxial with the hub, and a series of fan blades arranged between the rings and connecting the rings with each other and with the hub, each blade being formed from sheet metal doubled upon itself to form a pair of leaves diverging from their connection at the peripheries of the ring toward the hub, and each leaf of each blade being rigidly connected to the adjacent leaf of the-adjacent blade and with the hub.

3. A fan wheel comprising a hub and a series of fan blades, each blade being formed from a sheet doubled upon itself to form apair of diverging leaves, and the blades being arranged with the connection of the leaves remote from the hub and with the ends of each leaf connected with the adjacent leaf of the adjacent blade.

GEORGE F. SHERWOOD.

Witnesses:

ERNEST L. HILL, F. E. MORRILL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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