US878736A - Automatic fan. - Google Patents

Description

PATENTED FEB.

J. MASON. AUTOMATIC FAN. APPLIG'ATION FILED MAR.6, 1907.

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'PATENTED FEB. 11

J. MASON. AUTOMATIC FAN. APPLIUATION rum) MAR. 6, 1pm.

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JOHN MASON, OF wI MiNe'roN, DELAWARE, ASSIGNOR or ONE-HALF TO JOHN F. MALLOY, or WILMINGTON, DELAWARE.

AUTOMATIC FAN.

Patented Feb. 11, 1908.

T 0 all whom it may concern:

Be it known that I, JOHN MAsoN, of Wilmington, in the county of Newcastle and,

State of Delaware, have invented certain new and useful Im rovements in Automatic Fans; and I do iereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to makeand use the same.

The objects of this invention are to provide a mechanically operated fan primarily designed to be attached to bedsteads, and which will be simple in construction; noiseless in operation; capable of bping readily and easily started and stopped; whose speed may be regulated at will; and which may be applied to bed frames of various styles or patterns.

The invention will be hereinafter fully set forth and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in perspective showing the application of my invention to a bed frame. Fig. 2 is an enlarged view with the inclosing casing in section. Fig. 3 is a view at right angles to Fig. 2, with a portion of the casin in section. Fig. 4 is a view in perspective of the drum, the stop-bar and the means for actuating the latter. Fig. 5 is an enlarged transverse sectional view of the bed engaging clam Fig. 6 is a similar view showing one of t e parts of the clamp reversed.

Referring to the drawings, 1 designates a fan; 2 'an approximately horizontally dis- "posed arm to the outer end ofwhich the fan is adjustably secured; 3 a vertically disposed shaft upon the upper end of which the arm'2 is mounted, or, if desired, the arm and shaft may be formed in one piece. This shaft carries a gear pinion 4c'which meshes with a segmental rack bar 5 carried by an arm 6 having a pivot bearing at its lower end. This arm 6 at its upper end has a pin 8 projecting therefrom, and fitting in a groove 9 of a drum 10. The formation of this groove is such that in a single revolution of the drum the arm 6 will be reciprocated once in each direction, and hence the fan carrying arm will likewise be reciprocated from each side of a bed to the other.

Any suitable motor may be employed for efiecting the rotation of drum 10. I have, at 12, indicated a conventional form of motor,

the movement of which is transmitted by suitable gearing to a gear-wheel 13 on one end of the shaft of drum 10. This drum carries at one end two diametrically disposed lugs or shoulders 14.

15 designates a stop bar, which, when elevated, will be in the path of travel oflugs 14, and will arrest the motion of the drum and motor. I have shown this stop bar as being vertically disposed on an upright 16 of the supporting frame. Normally it is held depressed out of the path of the lugs by a spring 17 which holds it against either of the sides of a double cam plate 18 mounted on a short shaft 19, which shaft carries a rectangular plate 20 having teeth at its four corners. A spring-held slide 21 has a lateral linger which normally liesover one of these teeth. By pulling downwardly on slide 21 plate 20 and cam plate 18 will be turned one quarter revolution. This will effect the elevation of the stop bar into the path of the lugs of the drum. To restart the devi ce, the operator again pulls on slide 21, turning plate 20 and cam 18 so as to permit of the lowering of the stop bar. By using two stops on the grooved drum, the finger may be stopped spring 22 which acts on the slide 21 to normally hold it elevated, retains said slide against a stop 23, with its finger directly above one of the teeth of plate 20. manipulation of the slide is effected by a tassled or other ornamental cord connected thereto.

The speed of actuation of the fan ma be controlled by a suitable brake. The orm shown embodies two corresponding members 2 1 located on opposite sides of one of the arbors of the motor gearing and having a binding screw 25 at their upper ends. By adjusting this screw the speed may be regulated.

The device above described is preferably mounted in a box or casing 26, usually of ornamental appearance, and supported by an arm 27 clamped to the head of a bed frame. The clamp employed by me ordinarily comprises two corresponding V-members, faced with felt, or other soft material, such members being united by thumb screws 28. But as it is frequently desirable, with high-priced beds, to secure a minimum of contact between a clamp and the bed frame, the lower member of the clamp is formed at The ' at either side close to the head of the bed. A

its vertex, on the outside, with a covered bearing flange or plate 29, so that when such member is inverted, as shown in Fig. 6, the device may be secured to the frame with but a minimum of contact.

I claim as my invention 1. An automatic fan comprising a motor, a drum actuated thereby, a reciprocating fancarrying member actuated by the revolutions of said drum, a stop normally out of engagement with said drum, and means for actuating said stop for arresting the rotation of said drum.

2. An automatic fan comprising a motor,-a drum actuated thereby, a reciprocating fancarrying arm, oscillating mechanism actuated by said drum and by which said arm is reciprocated, a stop normally out of engagement with said drum, and means for actuating said stop for arresting the rotation of said drum. I

3. An automatic fan comprising a motor, a drum actuated thereby having a circumferential groove, a pivoted arm having a pin projecting into said groove, a segmental rackbar carried by said arm, a shaft having a gear-pinion in mesh with said rack-bar, and a fan-carrying arm actuated by said shaft.

4. The combination with a motor, of a drum actuated thereby having a circumferential groove, an oscillating arm having a pin projecting into said groove, a segmental rack-bar carried by said arm, a shaft having a gear-pinion in mesh with said rack-bar, a fan-carrying arm mounted on said shaft, a stop normally out of engagement with said drum, and means for actuating said stop for.

arresting the rotation of said drum.

5. The combination with a motor, of a drum actuated thereby, a fan-carrying arm, means actuated by said drum for oscillating said arm, a spring-held stop-bar for arresting said drum, and means for actuating said stopbar to cause it to engage said drum.

6. The combination with a motor, of a drum actuated thereby having a circumferential groove, a lug projecting from said drum, a fan-carrying arm, a shaft having a gear-pinion, an oscillating arm having a segmental rack-bar meshing with said pinion, a pin projecting from said arm into said groove, a stop-bar, and means for holding said stop bar in the path of travel of said lug.

7. The combination with a motor, of a having a segmental rackbar meshing with said pinion, a pin projecting from said arm into said groove, a stop-bar, and means for holding said stop-bar in the path of travel of said lugs.

8. The combination with a motor and a drum actuated thereby having lugs projecting therefrom, of a fan-carrying arm, means actuated by said drum for oscillating said arm, a stop-bar, a cam-plate for moving said stop-bar in one direction, a spring acting on said stop-bar, and means for actuating said cam-plate.

9. The combination with a motor, and a drum actuated thereby having lugs projecting therefrom, of a fan-carrying arm, means actuated by said drum for oscillating said arm, a spring-held stop-bar, a cam-plate for raising said stop-bar into the path of travel of said lugs, a second plate movable with said cam-plate, and a spring-held slide for engaging said second plate for effecting the turning of said cam-plate. I

10. The combination with a motor, and a drum actuated thereby, of a stop-bar, a spring acting thereon, a plate having opposite fiat edges and opposite cam portions, a second plate movable with the first men tioned plate, said second plate being of rectangular formation and having teeth at its corners, and a spring-held slide having a finger for engaging said teeth and effecting the turning of said cam-plate;

11. In an automatic fan, the combination with an oscillating arm, a motor, and means actuated by the latter for effecting the oscilla tion of said arm, of an inclosing casing, a clamp secured to said casing and composed of corresponding V-shaped members, and binding screws, one of said V-shaped members, having at its vertex, a second bearing surface.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

JOHN MASON.

T/Vitnesses:

FRANCIS S. MAGUIRE, VERNON E. WEST.

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