US1339169A - Fan - Google Patents

Description

J. DAUSTER.

' FAN. APPLICATION FILED MAR- 20, I918.

1,339,169, v Patented May 4, 1920.

2 SHEETS-SHEET 1.

. INVINTOR ATTORNEY J. DAUSTER.

FAN. APPLICATION FILED MAR- 20, 1918.

Patented May 4,1920.

2 SHEETS-SHEET- 2.

'INVEINTOIR Joiziz Jami/3r ATTORNEY JOHN DAUSCER, OE WILKINSBURG, PENNSYLVANIA.

FAN.

Specification of Letters Patent.

Patented May 4, 1920.

Application filed March 20, 1918. Serial No. 223,567.

To all whom it may concern:

Be it known that I J OHN DAUsTER, a citizen of the United States residing at Wilkinsbur in the county of Allegheny and State of Tennsylvania, have invented new and useful Improvements in Fans of which the following is a specification.

This invention relates to fans and more particularly to a construction of fan that will be operated in the movement of a rocking chair and has for its primary object to provide a device of this character of simple construction in which the parts are so associated and constructed that the speedof travel ofthe fan proper may be properly regulated irrespective of the rocking operation.

An object of the invention is the novel manner of transmitting motion from the chair to the fan and in such a manner that the same will be practically noiseless.

Besides the above my invention is distinguished in the manner of regulating the tension of the spring which in turn regulates the movement of the fan proper.

With these and other objects in view the invention will be better understood from the following detail description taken in connection with the accompanying drawings wherein Figure 1 is a diagrammatic view showing my invention applied to a chair.

Fig. 2 is an enlarged sectional view of a portion thereof.

Fig. 3 is a side elevation of the upper portion of the device.

Figs. 4, 5 and 6 are detail views of the tube mechanism.

Figs. 7, 8 and 9 are detail views of the other portion of the invention.

Again referring to the drawings and more particularly to Fig. 1 it will be seen that the seat 1 of the rocker 2 has secured thereto a tube 3 which at an intermediate point is provided with slots 4 encircled by threads 5 arranged exteriorly of the tube for a pur pose to be described later.

Pivoted to the upper end of the tube is a bell crank lever 6, one end of which has a pivoted connection to a rod 9 that is slidably mounted in the tube 3. At its lower end this rod is connected. to one end of a link 10 that is also pivotally connected as indicated at 11, to an arm 12 extending from the tube 3. From this arrangement it will be seen that upon swinging movement of the link 10 the rod 9 will be given reciprocatory movement, which movement is transmitted to the fan through the bell crank 6. The speed of travel of the rod 9 1s regulated .by varying the tension of a suitably located tension device that consists of a spring 13 housed within the tube and encircling the rod with one end bearing upon a collar 14 fixed to the rod 9 and the other end abutting a collar 16 slidably mounted on the rod and provided with fingers 16 slidable in the slots 4.

ooperating with the fingers and engaging the threads 5 is a nut 17 by means of which movement may be given to the collar 16 and the spring compressed. By arrangement of the spring 13 as set forth. it will be seen that upon tightening nut 17 the power of the spring may be increased or decreased thereby regulating the speed of travel of the rod 9 in its downward direction. In other words, the stronger the power of the spring, the quicker the rod 7 will travel in a downward direction. As the rod 9 is connected to the fan, the speed thereof is regulated accordingly. The speed of travel of the rod 9 is increased as the tension of the spring is increased and thus it will be seen that in a very simple manner I am able to regulate the speed of the fan 8 irrespective of the rocking operation of the chair. For the purpose of automatically moving the link 10 in the operation of the rocking chair I provide a disk 18 supported for rotation directly below the tube by the hanger 19. This disk has laterally extending projections 20 which may be struck from the disk or cast with the disk.

In the arcuate movement of the disk these projections successively engage and raise the link 10, the spring 13 returning the link after each movement.

The shaft 21 of the disk has keyed thereto a ratchet 22 continuously engaged by the dog 23 supported by the arm 24 loosely journaled on shaft 21 and for the purpose of assuring rapid movement of the disk I provide a second arm 25 identical in con struction to the arm 24;. Each arm has connection with a link 26 that is in turn pivotally connected to one end of a lever 27 pivotally connected to the runner 28 of the chair as indicated at 29. To reduce friction, that end of the lever 27 engaging the floor supports a roller 30. When it is found necessary to render the fan inactive I provide a clip 81 adapted to engage under the lever 27 and hold the same in inoperative position as clearly. shown in Fig. 9 of the drawing.

From the foregoing description, it will be seen that upon rocking the chair with the rollers 30 in active position, the disk 18 will be rotated and through its intermittent connection with the link 10, the latter will be reciprocated which in turn slides the rod 9 upwardly. The speed of travel of the rod 9 downwardly will be regulated according to the tension of the spring 13.

It is to be understood thatv while all of the several features of my improved mechanism have special cooperation with one another and together constitute a particularly effective mechanism for the purpose in view, certain of these features may be applied in other relations, and I therefore desire to cover the combinations present in the several parts of my improved mechanism whether employed in the general organization shown or elsewhere.

It is further to be understood that the structural embodiment of the invention as a whole and its various features as shown is merely illustrative and not restrictive since I am well aware that many of the details of construction can be widely varied without departing from the spirit of the invention I therefore do not desire to be limited in these particulars or in any others, except as set forth in the appended claim.

What. I claim is:-

A fan attachment for rocking chairs comprising a tube, upstanding therefrom, a disk rotatably supported by the tube, a link arranged to be operated by the disk, a fan pivotally connected to .the tube, a rod slidably mounted in the tube and connected to the fan and link, means for giving intermittent movement to. the link when said chair is rocked and an adjustable coil spring arranged to, regulate the speed of travel of said rod in a predetermined direction.

In testimony whereof I affix my signature.

JOHN DAUSTER.

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