Attachment for Rocking-Chairs Page: 2 of 3
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UNITED STATESPATENT OFFICE.
JOHN C. RYAN, OF CROSBY, TEXAS.
ATTACHMENT FOR ROCKING-CHAIRS.
72,995. Specification of Letters Patent. Patented Sept.9,19
Application filed Ang-ust 31, 1912. Serial No. 718,166.
To all whom it mniy cocern
Be it known that I, Jom C. EVAN, a
citizen of the United States, residing at
Crosby. in the county ofHarris and State of
5 Texas, have invented certain new and useful
Improvements in Attachments for Rocking-
Chairs, of which the following is a specifi-
cation, reference being had to the accom-
.0 This invention relates to fan' attachments'
for rocking chairs and has for its primary
object to provide a simple mechanism'for
actuating a rotary fan, said mechanism be-
ing operated in one direction of movement
15 of the rockers of the chair.
Another object of theinvention is to pro-i
vide a platform or spporting base having
grooves to receive the rockers of the- chair,
said. base and the chair rockers being pro-
20 vided with means to prevent longitudinal
movement of the chair upon said base, a
frame mounted upon the base and a fan ar-
ranged in the frame, mechanism mounted on
the base for rotating the fan shaft, and
25 means carried by the chair rockers to actuate
Still another object of the invention is to
provide a fan actuating mechanism which
consists of comparatively few elements of
30 simple form whereby a mechanism is pro-
duced which is reliable and positive in op-
eration and is capable of manufacture at
comparatively small cost..
With the above and other objects in view
35 the invention consists in the novel features
of construction and the combination and ar-
rangement of parts hereinafter more fully
described, pointed out in .the claim and
shown in the accompanying drawings in
Figure 1 is a side elevation of a fan at-
tachment for rocking chairs embodying the'
present invention. Fig. 2 is a top plan view.
Fig. 3 is a section taken on the line 3-3 of
45 Fig. 2, and Fig. 4 is a rear elevation.
Referring in deail to the drawing, 5 desig-
nates a base or platform upon which the
rocking chair indicated at 6 is arranged.
This chair includes the usual curved rockers
50 7. which are disposed in parallel longitudinal
grooves or channels 8 formed in the upper
surface of the base or platform 5. A rack
9 is secured in each of these grooves or
channels and complementary racks 10 fixed
55 to the under surfaces of the rockers 7 mesh
with the teeth of the racks 9 and effectively
prevent longitudintl sliding movement of
the chair rockers in the grooves of the plat-
form. 'These grooves are of sufficient depth
to obviate liability of the chair rockers mov- 60
ing transversely upon the platform out of
Upon the base or platform 5 a suitable
frame structure 11 is erected, and is firmly
braced by means of the rods 11' which ex- 65
tend through the base 5. Upon each side of
the frame 11 a. transversely disposed fan
shaft 12 is j ournaled in suitable bearings 13.
Upon each of the shafts 12 a fan 14 of any
approved form is secured. These fans are 7 0
inclosed within - a skeleton frame or casing
15. to protect the occupant of the chair
against possible injury by contact of the
fingers with the-fan blades.
Upon the rear end of the-platform- 5,. a 75
shaft 16 is rotatably mounted. This shaft
has fixed upon each end a pulley or belt
wheel 17. These wheels are traversed by
the endless belts 18 which extend upwardly
and pass around the pulleys 19 fixed upon 80
the fan shafts 12. Upon the shaft 16 a gear
20 is loosely mounted and adjacent to this
gear, a ratchet 21 is fixed upon said shaft.
Upon one face of the gear 20 a pawl 22 is
pivotally mounted and is adapted to engage 85
with the teeth of the ratchet 21 to lock the
loosely mounted, gear 20 upon the shaft 16
to rotate said shaft in one direction. Upon
the rear end of one of the rockers 7 a curved
downwardly extending rack 23 is secured. 90
The teeth of this rack mesh with the teeth
of the gear 20.
As above described, the operation of the
invention will be -understood as follows:
When the rear ends of the rocker move 95
downwardly in the backward rocking move-
ment of the chair upon the platform, the
rack 23 on the chair rocker meshing with
the gear 20 on the shaft 16 rotates said
shaft, the gear 20 being locked upon the loo
shaft by means of the ratchet and pawl 22.
Thus rotary movement is transmitted to the
fan shafts 12 through the medium of the
belts 18, and the fans create a circulation
of air in the vicinity- of the chair. 105
The fan shafts 12 are preferably mounted
on about a level with the shoulders of the
In order to hold the teeth of the racks 9
and 10 in mesh, I provide one or more heavy 113
coil springs 24 which are fixed at one of
their ends to the platform 5 and at their
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Ryan, John C. Attachment for Rocking-Chairs, patent, September 9, 1913; [Washington D.C.]. (texashistory.unt.edu/ark:/67531/metapth853506/m1/2/: accessed December 18, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; crediting UNT Libraries Government Documents Department.