US794999A - Attachment for rocking-chairs. - Google Patents

Description

No. 794,999. Q PATENTED JULY 18, 1905.

E.- E'. MOTTBR.

ATTACHMENT FOR ROCKING CHAIRS.

APPLICATION mum MAR. 16, 1904.

5 sums-sum 1.

q/qmmwwy vwewllozz @612 E/mer' E. M07761" 6. JJMA. after/nap No. 794,999. PATENTBD JULY 18, 1905-.

E. E. MOTTER.

ATTACHMENT FOR ROG-KING CHAIRS. APPLICATION rum) MAB. is. 1904.

6 BHEETS-SHEET 2.

No. 794,999. PATENTED JULY 18, 1905.v

B. E. MOTTBR. ATTACHMENT FOR ROCKING CHAIRS.

APPLICATION FILED MAR. 16, 1904.

' 5 SHEETS-SHEET 3.

-4/lornqv3 mcw l mwwl 1m nmunmmm Imam, nvc

PATENTED JULY 18, 1905.

E. E. MOTT'ER. 7 ATTACHMENT FOR ROGKING CHAIRS.

APPLICATION FILED MAR. 16, 1904.

5 SHEETS-SHEET 4.

[.NV/QVTOR E/m@rE M0 0/";

.wunsw u mun/w m. mow-l mmwmms WM] HNGTON. n c.

PATENTED JULY 18, 1905.

' E. B. MOTTER.

ATTACHMENT FOR ROCKING CHAIRS.

APPLIOATION FILED MAR. 16, 1904.

5 SHEETS-SHEET -5.

finite-fawn v v Y J E3513 7 7 v I atbozwm b UNITED STATES Patented July 18, 1905.

PATENT OFFICE.

ATTACHMENT FOR ROCKING-CHAIRS.

SPECIFICATION forming part of Letters Patent No. 794,999, dated July 18, 1905.

Application filed March 16, 1904. Serial No. 198.457.

1'0 all whmn it may concern:

Be it known that I, ELMER E. MOTTER, a citizen of the United States, residing at Tippecanoe City, in the county of Miami and State of Ohio, have invented certain new and useful Improvements in Attachments for Rocking-Chairs; and I do hereby 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 make and use the same.

My invention relates to attachments for rocking-chairs.

It has for its object to combine simplicity of construction, neatness of appearance, and cheapness of manufacture in a fan attachment for rocking-chairs, while providing a mechanical motor and connections with the fan instead of the old air-compressor motors and tubing.

The invention consists in the details of construction and combinations of parts hereinafter described, and more particularly pointed out in the claims.

In the accompanying drawings, illustrating the preferred embodiment of my invention, Figure 1 is a perspective view of a chair with my attachment, the fan being placed at the rear. Fig. 2 is a side view of a chair with my invention applied thereto, the fan placed at the side. Fig. 3 is an enlarged perspective view of the motor. Fig. 4 is an enlarged perspective View of the fan mechanism with its supporting-rod partly broken away and a fork for engaging a round of the chair. Fig. 5 is a sectional view of the fan mechanism on the line as w of Fig. 4. Fig.6 is a detail view of one of the motor roller-arms. Fig. 7 is a detail view of the guide for the motor rollerarms. Fig. 8 is a detail view of the chainand-pawl wheel. Fig. 9 is a side view of the gear-and-ratchet wheel, and Fig. 10 is a broken vertical sectional view showing more particularly the connection for the driving mechanism.

Referring more particularly to the drawings, the motor comprises two roller-arms 1 and a roller-arm guide 2, all bearing on a rod 3, attached to the rockers of the chair. Said 5 rod has right and left hand threads, respectively,'on its ends and is provided with lugs or ears 4, having threaded apertures and which engage the rockers of the chair. This rod is also provided with a wrench-hold 5, whereby it may be adjusted securely in position. Each roller-arm has an eye 6 at one end fitting around the rod 3 and at its outer end a preferably felt-covered roller 7, adapted to roll back and forth on the floor as the chair is rocked to and fro. Each roller-arm also has two upwardly-extending arms 8 9, preferably curved upward and having their extremities shaped somewhat in the form of a snakes head and provided with rolls 8 9 for the passage of the operating-cords. The arms 9 are preferably shorter than the arms 8. The guide-frame 2 has apertures 2 about centrally thereof for the rod 3 and on one side has an extension or shoulder 2 carrying a set-screw 2 for securing the frame to the rod 3 at the point best adapted for the easiest passage of the actuating-cords from the fan. From its center the guide-frame inclines slightly upward toward its ends, where eyes 10 are formed, to which eyes the extremities of the operating-cords are attached, as will be described hereinafter. At suitable distance from the ends of said frame are formed pairs of short upstanding arms 11. Between each pair is pivoted an adjustable rod 12, extending upwardly and preferably pointed on its upper end for insertion into a wooden cross-bar of the seat-frame, or if there is no such cross-bar a light strip of wood is secured below the seat for that purpose. Said rods 12 are formed of two sections each having a rack-surface facing that of'the other and one provided with a longitudinal slot 12, in which works a set-screw 12", the other rod having a lug 12 engaging said slot, whereby said rods may be adjusted so that the motor can be fitted to any style or size of chair. Said guide-frame 2 is provided with rolls 2", arranged below the ends of the rods 12, and other rolls 2 either side of its center and interiorly of the short arms 9 of the roller-arms.

The fan 13, which may be the ordinary type used on electric fans, is mounted on a shaft 14, mounted in a frame 15, supported by a preferably adjustable standard 16, having a spring-fork 17 at its lower end for engagement with a round of the chair. A small gear 18, fixedly mounted on the fan-carrying shaft, meshes with a large gear-wheel 19, mounted on a second shaft, also journaled in the frame. The gear 19 is loose on its shaft and has a laterallyextending ratchet 19 at each side.

16 one16having secured thereto a frame 22, provided with a slot 22, through which passes the other rod 16. This latter rod is provided at intervals with perforations by means of which it may be secured by pin connection with registering apertures in the frame 22 and rod 16*, respectively. The frame 22 has a second slot 22, in which are mounted rolls 22 for guiding the chains to the fan mechanism. The fork 17 is preferably formed by bending the extremity of the rod 16" inwardly and securing a strip of spring metal 17 to its inner side.

The motion-transmitting connecting medium 23 between the motor and the fan may be composed entirely of chains such as are shown in Fig. 10; but I prefer to use cords of suflicient size and strength for the motor and connect them with chains a short distance below the fan mechanism. Each of the two cords is connected to a ring or eye 10 at one extremity of the guide-frame for the rollerarms, is thence passed up over the roll 8, carried by the arm 8 of the adjacent roller-arm, down under the roll 2, up over-roll 9 in the arm 9, down under roll 2 of said roller-arm, up through the frame 22, guided by one of the rolls 22 to one end of one of the chains, which chain passes over the sprocket-wheels and down for connection with the other chain below the supporting-frame for the fan mechanism. It will thus be seen that the cords and chains being drawn taut when the chair is rocked forward the guide-frame for the roller-arms is depressed in that direction, so that the arms 8 and 9 of the forwardly-extending roller-arm protrude above said frame, thus drawing down the cord attached to that end of said frame and revolving the fan by means of one of the sprockets. At the same time the other cord is slacken'ed by the raising of the rear end of the guide-frame near the level of the pulleys 8 9 of the arms 8 9, and the slack is taken up by the first cord. The ratchets and pawls on the sprockets are so arranged that when one sprocket is revolved in the direction to operate the fan the pawl of the other sprocket will slip back over its ratchet and is ready on the opposite stroke to take up the work and continue the revolution of the fan. Thus by continuing the rocking motion of the chair the fan is continuously revolved at an average speed of eight hundred revolutions per minute.

The construction of the device is simple, as will be shown by the small number of parts and from the fact that said parts need not be constructed with such accuracy as to require skilled labor for their manufacture. Neatness is promoted by constructing the parts of light stamped or cast metal, which may be gilded or otherwise ornamented so as to present a pleasing appearance. In the operation of the device gravity is employed to as large extent as possible, so that the device is actuated without any noticeable exertion on the part of the person rocking.

It is understood that I do not limit myself as to details of construction shown and described herein as the preferred embodiment of my invention; but I reserve the right to make such changes as fairly fall within the scope of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an attachment for rocking-chairs, a motor comprising an arm having an auxiliary arm, a guide-frame for said auxiliary arm, means for securing said frame rigidly to the chair, means for pivotally mounting said firstmentioned arm on the chair, a fan, and means passing over said auxiliary arm for connecting up the motor and fan.

2. In an attachment for rocking-chairs, a motor comprising a pivoted arm having an auxiliary arm, a guide-frame for said auxiliary arm, and adjustable means for securing said frame to the chair, comprising two pairs of strips, one strip of each pair connected to said frame and having a longitudinal slot therein in which a lug and set-screw on the other strip is adapted to work, the other strip having its extremity pointed for insertion into the wood of the chair-bottom and both strips having ratchet-surfaces facing each other whereby they can be secured in any desired position by means of said set-screw, a fan, and means for connecting up said motor and fan.

3. In an attachment for rocking-chairs, a fan, a motor comprising a pivoted arm having one end resting upon the floor, said arm having an upwardly-extending auxiliary arm carrying a roll in its upper end, a guide-frame for said auxiliary arm, means for fixedly securing said frame to the chair, said frame having an eye at one end and a roll below said securing means, and flexible means secured to said eye, passing over the roll in said auxiliary arm, down under the roll arranged below said securing means and upward for connection with mechanism to operate said fan.

4:. In an attachment for rocking-chairs, a fan, a motor comprising a rod extending between the rockers of the chair, an arm pivoted to said rod and having one end. adapted to 3 means and upward for connection with mech-- anism to operate said fan.

5. In an attachment for roclung-chairs, a fan, a motor comprising a rod extending between the rockers of the chair, a plurality of' arms, each pivoted to said rod, two of said arms extending in opposite directions and having upwardly-extending auxiliary arms, each carrying a roll in its upper end, a guideframe for said auxiliary arms, means for fixedly securing said frame to said rod and to the chair-bottom, said frame having eyes and rolls below the means securing the frame to the chair-bottom, and flexible means secured to said eyes, passing over the rolls in the auxiliary arms, down under the rolls arranged below said securing means and upward for connection with mechanism to operate said fan, said arms and actuating means so arranged that the rocking of the chair transmits a continuous rotary motion to said mechanism.

6. In anattachment for rocking-chairs, a motor comprising a rod extending between the rockers of a chair, oppositely-extending arms pivoted to said rod each having one end adapted to rest upon the floor and having an auxiliary arm, a guide-frame for said auxiliary arm, means for securing said frame to said rod, a fan, and motion 4 transmitting means passing over said auxiliary arms and connecting said frame and fan.

7. In an attachment for rocking-chairs, a motor comprising a rod extending between the rockers of a chair, oppositely-extending arms pivoted to saidrod each having one end adapted to rest upon the floor and having a plurality of auxiliary arms, a guide-frame for said auxiliary arms, means for securing said frame to said rod, a fan, and motion-transmitting means passing over said auxiliary arms and connecting said frame and fan.

8. In an attachment for rocking-chairs, a motor comprising a rod extending between the rockers of a chair, an arm pivoted to said rod having one end adapted to rest upon the floor, said arm having a plurality of auxiliary arms, a guide-frame for said auxiliary arms, means for securing said frame to said rod, a fan, and motion-transmitting means passing over said auxiliary arms and connecting said frame and fan.

9. In an attachment for rocking-chairs, a motor comprising a rod extending between the rockers of a chair, an arm pivoted to said rod havingone end adapted to rest upon the floor, said arm having a plurality of auxiliary arms, each having a roller near its end, a guide-frame for said auxiliary arms, means for securing said frame to said rod, a fan, and motion-transmitting means adapted to pass over said rollers on said auxiliary arms and connect said frame and fan.

10. In an attachment for rocking-chairs, a motor comprising a pivoted arm having an auxiliary arm, a guide-frame for said auxiliary arm, adjustable means for securing said frame to the seat of the chair, a fan, and means for connecting up said motor and fan.

11. In an attachment for rocking-chairs, a fan mechanism comprising a frame, a shaft, carryinga fan and agear-wheel, journaled in said frame, a second shaft, also journaled in said frame, having a gear-wheel fixedly connected thereto and provided with a ratchetsurface on each side, pawl-carrying wheels, loosely mounted on said latter shaft and having their pawls adapted to engage said ratchetsurfaces, pulleys keyed to said pawl-carrying wheels, means for supporting said frame, a motor, separate chains connecting said motor and pulleys, the extremity of one chain secured to the other chain below the supportingframe for the fan mechanism, whereby a continuous rotary motion is given to said fan by the alternate actuation of said chains.

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

ELMER E. MO'ITER.

Witnesses:

E. J. DmnL, J. H. WEST.

Images