US1077859A - Fan. - Google Patents

Description

W. A. SANDERS.

FAN.

APPLICATION FILED NOV. 19, 1912.

1,077,859. Patented N0v.4, 1913.

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W. A. SANDERS. FAN.

APPLICATION FILED NOV. 19, 1912.

Patented Nov. 4, 1913.

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WILLIAM A. SANDERS, 0F RAHVAY, NEW JERSEY.

FAN.

Specification of Letters Patent.

Patented Nov. 4, 1913.

Application filed November 19, 1912. Serial No. 732,221.

To all whom it may concern:

Be it known that I, WILLIAM A. SANDERS, a citizen of the United States, residing at Rahway, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Fans, of which the following is a specification.

This invention comprehends certain new and useful improvements in spring motor fans and relates particularly to fans of the oscillating type.

The invention has for its primary object a simple, durable and efficient construction of fan, the parts of which are so formed and arranged that they may be cheaply manufactured and readily assembled and not liable to get out of order, and the invention also aims to provide an improved fan of this character with novel and effective means whereby the fan-supporting frame may be oscillated back and forth on its base while the fan blades are continuously rotated.

The invention further aims to generally improve devices of this character and to render them more useful and commercially desirable.

With these and other objects in view, as will more fully appear as the description proceeds, the invention consists in certain constructions, arrangements and combinations of the parts that I shall hereinafter fully describe and claim.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawings, in which,

Figure 1 is a side elevation of a portion of my improved fan. Fig. 2 is a similar view at right angles to Fig. 1. Fig. 3 is a sectional viewv through the frame-work illustrating the eccentrics and their correlated elements hereinafter specifically described. Fig. 4 is a sectional view at right angles to Fig. 3, and, Fig. 5 is a detail View illustrating the brake device for the fan.

Corresponding and like parts are referred to in the following description and designated in the accompanying drawing by like reference characters.

My improved fan embodies a base 1, from which a pedestal 2 rises, said pedestal being designed to receive a vertically disposed post or spindle 3 which is journaled therein for an oscillatory movement around its longitudinal axis. The post 3 is secured at its upper end to a base plate 5 which constitutes part of a frame-work 6, said frame-work also including side plates or frames 7 that are connected together by tie rods 8, as clearly illustrated in the drawings.

Mounted in the cross bars of the framelike side plates 7 of the frame-work, are horizontally disposed shafts designated 9, 10, ll, 12, 13 and 14, respectively, all of said shafts extending parallel to each other. Extending at right angles to the shafts just mentioned are other shafts designated 15 and 16 arranged parallel to each other and at right angles to the first named shafts and above the latter, as best illustrated in Fig. 1. The shafts 15 and 16 are journaled in cross bars 17 which are connected at their ends in any desired way to the frame-like side plates 7 of the frame-work 6.

Mounted upon the shaft 9, is a spring drum 18 provided with the usual ratchet and pawl mechanism and with a crank handle 19, whereby its spring may be wound up to the required tension, and also mounted upon the shaft 9, is a gear wheel 20 which meshes with a gear wheel 21 on the shaft 10. The shaft 10 also carries a gear wheel 22 meshing with a gear wheel 23 on the shaft 11, said shaft 11 also carrying a gear wheel 2% which meshes with a gear wheel 25 on the shaft 12. 26 designates another gear wheel on the shaft 12, said last named gear wheel meshing with a gear wheel 27 on the shaft 13. Also secured to the shaft 13, is a gear wheel 28 which meshes with a gear wheel 29 on the shaft ll. Secured to the shaft 14, preferably at the middle thereof, is a worm gear Wheel 30 which meshes with a worm 31 on the shaft 15. The shaft 15 also carries a gear wheel 32 which meshes with a pinion 33 secured to the shaft 16 near one end of the latter. The shaft 16 carries preferably at the middle thereof, a worm gear wheel 3 1 which meshes with a worm 35 on the fan shaft 36 which is journaled in the side plates 7 of the frame-work at the top thereof.

37 designates the fan which is provided with any desired number of blades and which is secured to one end of the shaft 36.

From as much of the description as has preceded in connection with the correlated views of the accompanying drawings, it will be understood that when the spring motor or drum 18 has been wound up to the required tension and is released the various gears will rotate each of the shafts 9, 10, ll, 12, 13 and 14 in its turn. .a

In order to hold the fan inoperative with the spring drum under tension, I provide a brake band 38 which is secured at one end to the base plate 5 of the frame-work and which encircles the drum 18, the other end of said band being secured to a tensioning screw 39 working in the base plate 5 and provided with a winged nut, whereby the tension of the band 38 may be varied. IVhen the band is loosened, it is obvious that the drum may operate, and in order to stop the drum, it is only necessary to tighten the band into frictional engagement with the drum in an evident manner.

In order to effect the oscillatory movement of the frame-work 6 and the rotary fan carried thereby, I mount upon the shaft 10 eecentrics 40 which are two in number-in the present instance, and each of which is provided with encircling straps 40 from each or" which extends an arm 41 pivotally connected to a lever 42 at one end of the latter. 'Ihese levers 42 extend down on opposite sides of the pedestal 2 in diametrical relation to each other, and the lower ends of the levers are fulcrumed upon pivot pins as secured to the pedestal. Both levers are formed at corresponding points with longitudinally disposed slots E and a pin or rod I5 is secured in any desired way in the post or spindle 3 and projects upwardly therefrom in o aosite directions the ends of said rod being received in the slots 44: of the levers 4:2. It will thus be understood that as the shaft 10 continuously rotates in one di rection, the eccentrics 40 will be actuated and the levers 42 will be rocked in opposite directions so as to turn the entire framework, first in one direction and then in the other, so as to secure the required oscillatory effect.

It will be understood that the base plate 5 of the frame-work is formed with slots 5 to accommodate the levers 42.

While the accompanying drawings illustrate what I believe to be the preferred embodiment of my invention, it is to be understood that the invention is not limited thereto, but that various changes may be made in the construction, arrangement and pro portions of the parts without departing from the scope of the invention, as defined in the appended claim,

What I claim is In a device of the class described, the combination with a base having an upstanding hollow standard, and a frame having a depending post loosely mounted in the standard and provided with a pin positioned transversely therethrough and havin its ends projecting in opposite directions rrom the post below the frame and above the standard; of a drive shaft mounted transversely in the frame, a driven shai" t mounted in the frame, operative connections between the drive shaft and the driven shaft. a fan mounted upon the driven shaft, a pair of grooved cam members mounted upon the drive shaft, a pair of vertical oscillating levers, means for pivoting the lower ends of the levers to the standard, straps engaged in the grooves of the cam members, arms projecting from said straps, the base of the frame being provided with openings to accommodate the levers, the upper ends of the leversbeing pivoted to the arms projecting from the straps, the opposite ends of the pin being loosely engaged in the oscillating levers, and means for controlling operation of the'drive shaft; v

In testimony whereof I ailix my signature in presence of two witnesses.

WILLIAM A. SANDERS. Witnesses:

HENRY H. SWICK, CHARLES T. V0011.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D: 0'.

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